JPS5943341B2 - How to apply car body cleaning agent - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for applying a car body cleaning agent, which is used in a railway car wash or the like and constitutes a preliminary step in car body cleaning work.

Dirt that adheres to the exterior of railway cars and car bodies is a complex composition, but the stains that are treated are a mixture of iron oxide, carbon, silicate, and oil.

In order to remove these major stains that are attached to the external surface of the car body, depending on the type of dirt, use an acidic cleaning agent that uses oxalic acid as the main ingredient and a surfactant as an auxiliary agent, or a neutral salt as the main agent. Spray an alkaline detergent aqueous solution containing a surfactant evenly onto the dirty surface, wait for a chemical and physical reaction, and then apply friction with a rotating brush to easily remove dirt. The most appropriate method was to spray clean water when the dirt was released from the interface and use a rotating brush to wash away the dirt along with the clean water.

Here, we will explain the first method of applying a conventional cleaning agent aqueous solution.
This will be explained with reference to the drawings and FIG.

Reference numeral 1 indicates a mist removing device, 2 indicates a shaft for rotating the mist removing device 1 by 90 degrees, and 3 indicates a spray pipe for spraying a cleaning agent.

The line a-b+a'-b' represents the deviation of the vehicle in the case of a trajectory curve radius of 200 meters, which is calculated to be 400 meters for a vehicle with a total length of 25 meters.

Furthermore, A, B, A', and B' each indicate the approximate position of a ventilation hole on the outer surface of the vehicle.

When the nozzle 3 is used to directly spray the cleaning agent aqueous solution into the ventilation holes provided on the outer side of the vehicle, it can be seen that the cleaning agent penetrates into the built-in vehicle parts through the ventilation holes.

In addition, if the mist removal device 1 only rotates 90 degrees around the rotation axis 2, it will not be able to follow the deviation or unevenness of the vehicle, so gaps will be created and the sprayed cleaning agent will be scattered into the outside air. Recognize.

In this way, the modern structure of the exterior cleaning surface of the car body is equipped with many intake and exhaust holes from the outside air because it houses important parts of the car. It is no longer possible to apply the cleaning agent using a single spray method with appropriate pressure.

In addition, there is a strong demand for the use of car body cleaning agent application devices on curved track sections, and with conventional fog removing devices with built-in spray pipes, the gap due to deviation of the side of the cleaning vehicle row becomes large, causing the sprayed cleaning agent to scatter into the outside air. Not only that, but also the cleaning agent cannot be evenly applied to the surface of the car body to be cleaned.

In view of the above points, the present inventor has already proposed in Japanese Patent Publication No. 37-3836 a method for applying an aqueous detergent solution in which the aqueous detergent solution does not scatter into the atmosphere during application.

The technique proposed by the present inventor described in Japanese Patent Publication No. 37-3836 is to apply a chemical solution while rubbing the outer peripheral surface of a sponge roll, which has been saturated with a chemical solution (cleaning agent aqueous solution), against the side surface of the car body. This is the way to do it.

However, with this previously proposed method of applying chemicals using a sponge roll, the outer peripheral surface of the sponge roll cannot cope with the finely uneven surfaces on the outside of the car body, so it is difficult to apply the chemicals to concave areas such as inside the window frame of the car body. The drawback is that dirt remains in the recess.

Furthermore, the chemical solution is supplied to the sponge roll (
Even if a chemical solution is supplied directly to the outer peripheral surface of a sponge roll, the chemical solution will flow down from the outer surface of the roll due to the air pressure inside the roll.

For this reason, this proposed technology has no choice but to adopt a method in which the chemical liquid flows into the roll from the top surface of the roll, which has the drawback that it takes time to contain the chemical liquid into the roll, making this process extremely inefficient. there were.

In view of the above points, the inventor of the present invention applied a chemical solution to the outer surface of the vehicle body using a rotary brush for cleaning the vehicle body, which allows the outer periphery to sufficiently follow the fine irregularities on the outer surface of the vehicle body, and also allows easy supply of the chemical solution. Various experimental studies were conducted regarding this method.

However, if this rotating brush is rotated at the same high speed as in the past, there is a problem that the chemical solution will scatter, and if it is rotated at a low speed that does not cause the chemical solution to scatter, the brush fibers are soft and quite long. There is a problem in that this drips down from a certain point, making it impossible to apply the chemical solution.

Furthermore, if the brush fibers were made of hard materials, there would be a problem in that the outer surface of the vehicle body would be seriously damaged, making it extremely difficult to put them into practical use.

The present invention has been made in view of the above points, and an object of the present invention is to provide a method for effectively and efficiently applying a detergent aqueous solution (chemical solution) to the outer surface of a vehicle body using a rotating brush. is to provide.

That is, the present invention rotates at high speed a rotating brush for car body cleaning installed upright near the side of the track, so that the periphery of the rotating brush for car body cleaning is coated with an aqueous detergent solution in a previous process. Applying a cleaning agent aqueous solution to the side surface of the car body of a railway car as a pre-process of the car body cleaning process in which the side surface of the car body is brought into contact with the side surface and cleaning water is sprayed onto the side surface of the car body to wash away dirt on the side surface of the car body together with the cleaning agent. In this application method, soft long fibers and short fibers that support the hanging of the same long fibers are arranged vertically parallel to the circumferential surface of the brush body, and the soft long fibers are separately erected near the side of the track, and the short fibers that support the hanging of the same long fibers are densely arranged in parallel to the circumferential surface of the brush body. The periphery of the long fibers of the rotating brush for applying a cleaning agent, which is planted on the rotating brush for applying a cleaning agent, is brought into sliding contact with the side surface of the car body on the track, and the aqueous solution of the cleaning agent is sprayed on the circumferential surface of the rotating brush for applying the cleaning agent, and a cleaning agent in which the cleaning agent aqueous solution is sprayed onto the brush surface at a speed lower than the rotation speed of the rotary brush for car body cleaning, and at a speed low enough to prevent the cleaning agent aqueous solution from scattering from the outer periphery of the brush due to centrifugal force. Rotate the rotating application brush,
A car body cleaning agent application method t characterized in that the cleaning agent aqueous solution is applied to the side surface of the vehicle body while rubbing the brush surface of a rotating brush for cleaning agent application on the brush surface onto which the cleaning agent aqueous solution has been sprayed. There it is.

According to the present invention, the long fibers of the rotating brush are supported by the short fibers so that they do not sag during low speed rotation, the necessary amount of the cleaning agent aqueous solution is supplied to the rotating brush, and the deviation of the vehicle is prevented. By providing sufficient followability and eliminating gaps, and by rotating at a low speed, the detergent aqueous solution is prevented from scattering outside, and the detergent aqueous solution does not enter the ventilation holes on the side of the car body, cleaning the surface evenly. The cleaning power is improved by applying a cleaning agent and adding some friction to the interface.

Hereinafter, the present invention will be described based on one embodiment shown in the drawings.

In FIGS. 3 and 4, vertically parallel rotating arms 2, 2 are attached to the upper and lower sides of a rotating shaft 1 that can be freely rotated to any required angle by power (not shown). A rotary brush shaft 3 is rotatably provided between the swinging ends of the rotary brushes 2 and 2, and the outer periphery of the rotary brush shaft 3 forms a rotary brush 8, which will be described later.

Reference numeral 7 denotes a spray pipe that supplies an aqueous detergent solution to the outer circumference of the rotating brush 8, and is supported upright near the side of the brush 8 so as to swing together with the swinging of the brush.

The rotating brush 8 maintains its shape by implanting fibers with a structure as shown in FIG.

That is, within the channel 6, the fibers forming the brush are folded around the core wire located inside the channel 6, and the folded base portions of the fibers are sandwiched within the channel 6.

In this way, the upper primary brush 5, ie, the applicator brush, is made of long fibers with a length of a + c, and the short fibers with a length of a are formed along the lower surface of the brush to support it. A secondary brush 5', that is, a support brush is constituted, and a channel in which such a brush is fixed is tightly wound around the outer periphery of the cylinder 4 in a spiral shape to constitute a rotating brush 8.

Such a rotating brush 8 spreads the cleaning agent aqueous solution a-b+a
When applying to the '-b' side, the rotation is performed at low speed to prevent the detergent aqueous solution from scattering due to centrifugal force. However, if the rotation speed is low, the flocked fibers will droop, and to prevent this With such a configuration, c:a is set appropriately.

In addition, using vinyl chloride fiber with a diameter of 0.3 mm as the wire,
Using a prototype brush in which a wire bundle was fixed in a channel 6 with a diameter of 10 mm, we experimentally determined the dimensions at which the fibers could maintain their shape, that is, the dimensions at which they would not droop even when the brush was stopped. It has been found that a brush in which strands are flocked at a density of o, sy per rice, with a-100 strands and c=70 strands is suitable for practical use.

In addition, the method of flocking brush fibers is to fold back the fibers to form long and short fibers as described above, or to hold the long and short fibers separately in channels, which are arranged vertically parallel to each other. Alternatively, it may be formed by winding it around a cylinder.

In addition, in FIG. 4, the car body side positions a' and b' show the deviation mode when a deviation of 400 mm occurs in a Shinkansen vehicle when the radius of the curve is 200 meters. The cleaning agent aqueous solution spray pipe 7 rotates in the direction of the rotating brush 8.
With the displacement of , it is displaced as 7', and the necessary amount of cleaning agent aqueous solution is supplied to the rotating brush 8'.

When the application of the cleaning agent by the low-speed rotating brush 8 is finished, the rotating brush 8 itself is cleaned with clean water, and the rotating brush 8 rotates at a high speed to remove and store the clean water, which prevents oxidation of the device and chemical fibers. Prevents deterioration and freezing.

Here, the inventor conducted tests to put the method of the present invention into practical use, and as a result of numerous experiments to satisfy the above conditions by distinguishing between Shinkansen vehicles and general conventional railway vehicles, the following results were obtained. Detergent application experiment using a rotating brush that yielded experimental results (a) For Shinkansen Standard cleaning speed Detergent injection amount Rotating brush rotation speed 10K
M/hour 561/min 100-120/min (b) Standard cleaning speed for general vehicles on conventional lines Cleaning agent spray amount Rotating brush rotation speed 5KM/hour 281/min 50-60/min In addition, the above test, During the test work, due to the followability of the rotating brush, the cleaning agent aqueous solution can be evenly applied to the car cleaning interface due to the deviation of the car, and when the gap between the car formations passes through the device, the cleaning is done. It was confirmed that the cleaning agent aqueous solution was not scattered at the connecting part because the cleaning agent aqueous solution was supplied and contained in a rotating brush that rotated at a low speed.

That is, according to this method, there is no need for the troublesome manual work of wiping off the cleaning agent from the connecting part holo screen, which was conventionally performed after application.

As described above, according to the cleaning agent application method according to the present invention,
First, the cleaning agent liquid is sprayed onto the brush surface of the low-speed rotating brush, and the brush surface of the rotating brush that has been sprayed with this cleaning agent is brought into contact with the side surface of the vehicle body, thereby indirectly applying the cleaning agent liquid to the side surface of the vehicle body. This eliminates the possibility of the cleaning agent liquid splashing out from the opening on the side of the car body and chemically deteriorating various parts inside the car, as was the case in the past. The brushes follow the finely uneven surfaces of the car body, such as window frames, so there is no unapplying of the cleaning liquid.Also, even when the applicator is installed on a curved track, the rotating brush sufficiently follows the deviation of the car body, making it effective. This has the effect of being able to apply a cleaning agent to the surface.

Further, according to the above-mentioned vertical rotating brush for applying a cleaning agent liquid according to the present invention, the cleaning agent liquid is applied by low speed rotation while the soft long fibers are supported by the short fibers from below. During application work using low-speed rotation without scattering, the tips of the long fibers do not hang down, allowing effective application work, and since the long fibers for application can be made sufficiently soft, there is no damage to the car body during application work. It has the effect that there is no risk of causing damage.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view of a conventional cleaning agent coating device, FIG. 2 is a schematic plan view of FIG. 1, and FIG. 3 is a schematic front view of a car body cleaning agent coating device showing an embodiment of the present invention. FIG. 4 is a schematic plan view of FIG. 3, and FIG. 5 is a cross-sectional view of the bristle-planted portion of the brush. a b p a'b'...Car body side, 7
... Detergent aqueous solution spray pipe, 8 ... Rotating brush, 5 ... Primary brush as long fiber, 5
′・・・Secondary brush as short fiber.

Claims (1)

[Claims] 1 By rotating a rotating brush for car body cleaning installed upright near the side of the track at high speed, the periphery of the rotating brush for car body cleaning is brought into contact with the side surface of the car body that has been previously applied with an aqueous detergent solution in the previous process. In a coating method for applying an aqueous solution of a cleaning agent to a side surface of a car body of a railway vehicle as a pre-process of a car body cleaning process in which cleaning water is sprayed onto the side surface of the car body to wash away dirt on the side surface of the car body together with the cleaning agent. The soft long fibers and the short fibers that support the hanging of the long fibers at the base of the same long fibers are placed separately on the side of the track, and are densely planted vertically parallel to the circumferential surface of the brush body. The peripheral edge of the long fibers of the rotating brush for applying a cleaning agent is brought into sliding contact with the side surface of the car body on the track, and an aqueous solution of the cleaning agent is sprayed on the circumferential surface of the rotating brush for applying the cleaning agent, and the cleaning agent is cleaned. A rotating brush for applying a cleaning agent, in which the cleaning agent aqueous solution is sprayed onto the brush surface at a speed lower than the rotational speed of the cleaning agent rotating brush, and at a speed low enough to prevent the cleaning agent aqueous solution from scattering from the outer periphery of the brush due to centrifugal force. A car body cleaning characterized in that the cleaning agent aqueous solution is applied to the side surface of the vehicle body while rubbing the brush surface of the rotating brush for applying the cleaning agent on the side surface of the vehicle body, which is rotated and the aqueous solution of the cleaning agent is sprayed onto the brush surface. How to apply the agent.