JPH0672294A - Polishing method of automobile - Google Patents

Abstract

PURPOSE:To prevent the solid attachment of a condensed wax attached rotary to brushes by rotating the rotary brushes while injecting a fresh water to the rotary brashes so as to wash out a water wax attached to the rotary brushes, after the rotary brushes are separated from the car body surface in a polishing process, and before the drying process. CONSTITUTION:When a polishing process and a rinsing process are finished, the upper side and both sides rotary brushes 4, 5, and 5 are rotated continuously while a planer-type running frame 1 is stopped at the right end position. And only a fresh water is injected to the rotary brushes 4, 5, and 5 from the injection pipes 37, 40, and 41 of a rense device R and a water wax application device W2, and at the same time, a fresh water is injected to the brushes also from the injection pipes 49 and 50 of a cleanser application device C. As a result, the water wax component attached to the brushes can be washed out instantly from the rotary brushes 4, 5, and 5 by injecting a fresh water. After such an injection is continued for about 10sec. the injection is stopped, and the rotation of the rotary brushes 4, 5, and 5 is stopped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of polishing an automobile, which is most suitable for polishing the surface of an automobile.

[0002]

2. Description of the Related Art As a method for polishing an automobile, for example, when a gate type traveling frame which can reciprocate in the front-rear direction across a vehicle is traveled, a car body surface of the vehicle is cleaned by using a rotating brush provided on the traveling frame. After sequentially performing a brushing cleaning step and a polishing step of polishing the vehicle body surface after the brushing cleaning, a drying step of blowing drying air to the vehicle body surface is performed. A method of rubbing the water-based wax sprayed by the water-based wax coating device provided on the vehicle body surface with the rotating brush is conventionally known.

[0003]

In the above-mentioned conventional method, the rotary brush is not particularly washed even after the polishing step is completed, even though the rotary brush is commonly used in the brushing cleaning step and the polishing step. That is, it has been believed that even if the water-based wax adhered to the rotating brush in the polishing step is left as it is on the brush, it does not hinder the implementation of the next polishing method.

However, when the next polishing method is carried out while leaving the water-based wax adhered to the rotary brush in the polishing step on the brush, the cleaning effect in the brushing cleaning step at the time of carrying out the polishing method is considerably lowered. do it,
The present inventors have found that there is a problem that a sufficient polishing effect cannot be expected in the subsequent polishing step, and it is considered that the reason for the decrease in the cleaning effect is the following two points.

The water-based wax adhered to the rotating brush in the above polishing step is gradually concentrated by water evaporation while the gate type traveling frame is on standby until the next polishing method is carried out, and is firmly adhered to the brush. However, since the concentrated wax easily takes dirt into itself (hence, it easily gets dirty), it will be rubbed against the vehicle body surface in the state where a large amount of dirt is taken into the wax itself in the next brushing cleaning step. As a result, the dirty wax adheres to the vehicle body surface, which causes the vehicle body surface to be soiled and reduces the brushing cleaning effect.

Further, in the next brushing cleaning step, the wax adhered to the vehicle body surface as described above further strengthens the connection between the vehicle body surface and the dirt originally attached thereto, so that the dirt on the vehicle body surface is cleaned. It becomes difficult to remove and the brushing cleaning effect is further reduced.

Further, in order to solve such a problem, when the water-based wax adhering to the rotating brush is manually removed, extra labor and labor are required.

Further, in the conventional polishing method, water containing an activator adhering to the inside of the rotary brush and the gate type traveling frame before that is dropped on the vehicle body surface during the drying step subsequent to the polishing step. Since the wettability of the above-mentioned residual liquid with respect to the vehicle body surface increases, there is also a problem that the residual liquid is less likely to be blown off and the drying effect on the vehicle body surface deteriorates.

The present invention has been proposed in view of the above, and an object thereof is to provide a method for polishing a vehicle, which can solve all the above problems of the conventional methods.

[0010]

In order to achieve the above object, the present invention uses a rotating brush provided on a traveling frame when traveling on a gate type traveling frame that can reciprocate in the front-rear direction across an automobile. The process of brushing and cleaning the car body surface,
After sequentially performing a polishing step of polishing the vehicle body surface after the brushing cleaning, a drying step of blowing drying air to the vehicle body surface is performed, and in the polishing step, the water-based wax coating device provided on the traveling frame is used. In a method for polishing an automobile, wherein the water-based wax sprayed by is rubbed against the vehicle body surface by the rotating brush.
After the rotary brush is separated from the vehicle body surface in the polishing step and before the drying step, clean water is sprayed onto the rotary brush to wash away the water-based wax adhering to the rotary brush, and the rotary brush is rotated. It is characterized by

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, an embodiment of a car wash apparatus used for carrying out the method of the present invention will be described with reference to FIGS.
In FIG. 1, a gate-type traveling frame 1 is mounted on a traveling rail 2 laid on the ground so as to be able to travel in the front-rear direction via traveling wheels 3 pivotally supported there. An upper surface rotating brush 4 and a pair of left and right side surface rotating brushes 5, 5 are supported on the gate type traveling frame 1.

The upper surface rotating brush 4 is supported by a horizontal shaft 6 which is horizontally mounted on the gate-shaped traveling frame 1 so as to be swingable back and forth via a swing arm 7, and is supported by a prime mover 8 provided on the swing arm 7. Swing arm 7
It is rotationally driven through the internal transmission mechanism, and can come into contact with the upper surface of the vehicle body of the automobile for brushing and cleaning the surface. A sprocket 9 is fixed to the horizontal shaft 6, and an intermediate shaft 10 to which another sprocket 11 and an operating arm 12 are fixed is freely attached to the gate type traveling frame 1 behind the horizontal shaft 6 (left side in FIG. 1). An endless chain 13 is suspended between the sprockets 9 and 11 so as to be rotatable. An upper end of an air cylinder 15 whose lower end is swingably supported on the gate type traveling frame 1 is rotatably connected to the actuating arm 12 via a pivot 16, and thus is in a position shown by a solid line in FIG. When the air cylinder 15 is extended by a predetermined amount, the swing arm 7 is swung clockwise about the horizontal axis 6 by a predetermined angle to hold the upper surface rotating brush 4 in the upper storage position X shown by the chain line in FIG. You can Further, when the air cylinder 15 is in the inoperative state, that is, in the free state, the upper surface rotating brush 4 can freely swing around the horizontal axis 6 through the swinging arm 7 in the front-back direction of the gate type traveling frame 1. . It should be noted that Y in FIG. 1 indicates the swing limit of the upper surface rotating brush 4 toward the front.

The pair of left and right side brushes 5, 5 are hung at the rear portion of the gate type traveling frame 1, that is, a pair of left and right side guide rails 17 are provided above the gate type traveling frame 1. The moving frames 18, 18 of which are slidably engaged,
Vertical shafts 19, 19 on which a pair of left and right side rotating brushes 5, 5 are suspended are mounted on the moving frames 18, 18.
Each moving frame 18 and the vertical shaft 19 can swing back and forth in the traveling direction of the portal traveling frame 1 with the support shaft 20 of the guide rail 17 as a fulcrum. A prime mover 21 is supported by each moving frame 18, and the side rotating brush 5 can be rotated by this prime mover 21. The pair of left and right side surface rotating brushes 5, 5 are controlled so as to open and close along the guide rails 17, and the front surface of the vehicle body, the left and right side surfaces and the rear surface of the vehicle can be brushed and washed. As the supporting and actuating mechanism for the upper surface and the pair of side surface rotating brushes 4, 5 and 5, conventionally known ones are used, and a detailed description thereof will be omitted.

The gate type traveling frame 1 is equipped with a drying device D at the front portion thereof, that is, on both sides of the gate type traveling frame 1, a pair of left and right side air blowing nozzles 22, 2 opening inwardly.
2 is provided, and an upper surface blowing nozzle 23 that also opens inward is provided on the upper surface so that it can be moved up and down.
These side surface and upper surface blowing nozzles 22, 22 and 23 are communicated with a blower 24 installed on both upper sides of the gate type traveling frame 1. Since the drying device D also has a conventionally known structure, its detailed description will be omitted.

The side rotary brush 5, of the gate type traveling frame 1,
Behind 5 is provided a pretreatment agent coating device W ₁ capable of applying a pretreatment agent containing an anionic activator in the form of foam to the vehicle body surface of an automobile. Next, this pretreatment agent coating device W
The structure of ₁ will be described mainly with reference to FIG. 2. In the support frame 25 that is continuously provided on the rear surface of the gate-type traveling frame 1, the gate-type lower treatment agent injection pipe 26 includes the gate-type traveling frame 1. A plurality of nozzles 27, each having an injection port directed toward the inside of the gate-shaped traveling frame 1, are provided at intervals in the lower treatment agent injection pipe 26, which are arranged transversely. A foamy lower treatment agent supply pipe 28 is connected in the middle of the lower treatment agent injection pipe 26, and the supply pipe 28 is connected to the first ejector 2
9, an electromagnetic valve 30, and a pressure reducing valve 31 are connected to an air supply pipe 32, and the air supply pipe 32 is connected to an air tank A. A water pump P is connected to the first ejector 29 via a second ejector 33, a solenoid valve 34, and a fresh water supply pipe 35.
Are connected. Further, a lower treatment agent tank T ₁ is connected to the second ejector 33 via a lower treatment agent supply pipe 36. Therefore, when the solenoid valve 34 is opened after the water pump P is driven, the pressure water reaches the second ejector 33 through the solenoid valve 34, where the pretreatment agent in the pretreatment agent tank T ₁ is supplied by the ejector effect. Since it is sucked through 36, the pretreatment agent and the pressure water are mixed and reach the first ejector 29. Therefore, when the solenoid valve 30 is further opened, the high-pressure air in the air tank A reaches the first ejector 29 via the pressure reducing valve 31 and the solenoid valve 30, and therefore, in the first ejector 29, the mixed liquid of the pretreatment agent and fresh water and the high-pressure air. And are mixed to produce a foamy pretreatment agent,
The pretreatment agent is supplied to the pretreatment agent injection pipe 26 in the form of foam and ejected from a plurality of nozzles 27.

A rinsing device R is provided on the support frame 25 adjacent to the front side of the surface treating agent coating device W ₁ . The rinsing device R is a substantially gate-shaped fresh water injection pipe 37 arranged substantially in parallel with the lower treatment agent injection pipe 26, and an injection port provided in the injection pipe 37 and inwardly of the gate-shaped traveling frame 1. The fresh water injection pipe 3 is composed of a plurality of nozzles 38 provided.
The water pump P is connected in the middle of 7 through an electromagnetic valve 39, and by opening the electromagnetic valve 39, fresh water can be injected from a nozzle 38.

Further, the portal traveling frame 1 is provided with an aqueous wax coating device W ₂ capable of coating an aqueous wax containing a cationic activator on the vehicle body surface, and a detergent coating device C capable of coating a detergent on the vehicle body surface. To be The water-based wax coating device W ₂
An upper water-based wax injection pipe 40 is provided in an upper portion of the traveling frame 1 between the upper surface rotating brush 4 and the drying device D.
And a pair of left and right aqueous wax injection pipes 41, 41 on the left and right inner side surfaces of the traveling frame 1 between the upper surface rotating brush 4 and the pair of side surface rotating brushes 5, 5.
And the side water-based wax injection pipes 41, 41 are provided.
Are communicated with both ends of the upper water-based wax injection pipe 40, respectively. The upper water-based wax spray pipe 40 has a plurality of nozzles 42 whose nozzles are directed rearward and downward so that the water-based wax can be directly spray-applied to the upper rotary brush 4 when the upper rotary brush 4 is near the operating position shown by the solid line in FIG. Is provided. Further, a plurality of nozzles 43 having jet nozzles directed inward of the gate type traveling frame 1 and horizontally horizontally are provided on the side aqueous wax injection pipes 41, 41, and horizontally toward the side surface rotating brushes 5, 5. A plurality of nozzles 44 are provided, the nozzles of which are directed inward rearward. An aqueous wax supply pipe 45, a third ejector 46 and a solenoid valve 4 are provided in the middle of the upper aqueous wax injection pipe 40.
It is connected to the water pump P via 7. An aqueous wax tank T ₂ is connected to the third ejector 46 via a solenoid valve 48. Therefore, if both electromagnetic valves 47 and 48 are opened after the water pump P is driven, the pressure water reaches the ejector 46, where the water wax in the water wax tank T ₂ sucked by the ejector effect and the pressure water are discharged. Are mixed,
The mixed liquid is jetted from a plurality of nozzles 42, 43, 44. If the solenoid valve 47 is opened and the solenoid valve 48 is closed, fresh water can be injected from the nozzles 42, 43, 44.

The detergent applying device C includes an upper detergent spray pipe 49 provided on the portal frame 1 adjacent to a rear portion of the upper aqueous wax jet pipe 40 and side aqueous wax jet pipes 41, 41.
Side detergent spray pipe 5 provided on the same frame 1 adjacent to the rear part
0, 50, and the side detergent spray pipe 50,
50 communicates with both ends of the upper detergent injection pipe 49. The upper detergent spray pipe 49 is provided with a plurality of nozzles 51 having nozzles directed downward so that the detergent can be directly spray-applied to the upper rotary brush 4 when it is near the operating position shown by the solid line in FIG. . Also, the side detergent spray pipe 50,
The nozzle 50 is provided with a plurality of nozzles 52 with their nozzles directed toward the inner side rotating brushes 5, 5. The middle of the upper detergent injection pipe 49 is connected to the water pump P via the detergent supply pipe 53, the fourth ejector 54, and the electromagnetic valve 55. A detergent tank T ₃ is connected to the fourth ejector 54 via an electromagnetic valve 56. Therefore, if both electromagnetic valves 55 and 56 are opened after the water pump P is driven, the pressure water reaches the fourth ejector 54, where the detergent in the detergent tank T ₃ that has been sucked by the ejector effect and the pressure water are discharged. Are mixed, and the mixed liquid is sprayed from a plurality of nozzles 51 and 52. Solenoid valve 5
5 is opened and the solenoid valve 56 is closed, the nozzles 51, 52
More clean water can be sprayed.

The operating system of the rotary brushes 4 and 5, the detergent coating device C, the pretreatment agent coating device W ₁ , the water-based wax coating device W ₂ , the rinsing device R and the drying device D, and the traveling frame 1 travel. The operation is performed by the control device 57 provided on the traveling frame 1.
Controlled by.

Next, the operation of the above-described embodiment performed by using the car wash apparatus having the above-mentioned structure will be described with reference to FIGS.
In these drawings, (a) is a simplified side view and (b) is a simplified plan view.

[Brushing Cleaning Step] First, the automobile V is stopped at a predetermined position between the traveling rails 2 and 2. In the gate type traveling frame 1, the upper surface rotating brush 4 is moved downward from the storage position X of the chain line in FIG. 1 to the operating position of the solid line in FIG. Be lowered. After that, the upper surface rotating brush 4 and the pair of left and right side surface rotating brushes 5, 5 are normally rotated (in the direction of arrow r _{1 in} FIG. 3), and upper and side detergent spray pipes 49, 50,
While spraying the detergent from 50 and the clean water from the clean water jet pipe 37 respectively, when the gate type traveling frame is moved to the right in FIG. 3, the upper surface rotating brush 4 swings around the horizontal axis 6 and the automobile V
The upper surface of the vehicle body is cleaned by brushing, while the pair of left and right side surface rotating brushes 5, 5 are controlled to open and close along the guide rail 17 to sequentially clean the front surface, the left and right side surfaces and the rear surface of the vehicle. Then, the detergent and dirt remaining on the vehicle body surface due to the brushing cleaning are washed away by the fresh water sprayed from the fresh water spray pipe 37. Although such brushing cleaning is well known in the art, the pair of left and right side rotating brushes 5 and 5 in this embodiment are especially designed after brushing the front surface of the vehicle body.
That is, when the left and right side surfaces and the rear surface of the vehicle body are brushed, the state becomes reverse (in the direction of arrow r _{2 in} FIG. 3B).

Thus, when the traveling frame 1 reaches the right end position as shown by the chain line in FIG. 3, the traveling of the traveling frame 1 is stopped, and at the same time, the spray of detergent and fresh water is stopped, and the brushing cleaning process of the vehicle body is completed.

[First Polishing Step] Next, as shown by the solid line in FIG. 4, with the gate type traveling frame 1 in the right end position, this time, the upper surface and the side surface rotating brushes 4, 5, 5 are respectively reversed (see FIG. 4 arrow r ₂ direction), and while ejecting the foamy lower treatment agent from the lower treatment agent injection pipe 26 of the lower treatment agent applying device W ₁ , the portal traveling frame 1 is moved backward in the left direction of FIG.
The foamy surface treatment agent is applied to the vehicle body surface, and the surface of the vehicle body surface is polished by the rotating brushes 4, 5 and 5 in the reverse order of the above-mentioned brushing cleaning, that is, the foamy surface treatment agent is applied to the vehicle body surface. Can be rubbed on the surface. In the polishing step, the pair of side surface rotating brushes 5 and 5 are in the normal rotation state (direction of arrow r _{1 in} FIG. 4B) after polishing the rear surface of the vehicle body, that is, when polishing both side surfaces and front surface of the vehicle body.

Since the pretreatment agent sprayed in this step is in the form of foam, it does not run off immediately after being applied to the vehicle body surface, and even a relatively small amount of the pretreatment agent is applied to the vehicle body surface. Can be evenly applied to.

Thus, as shown by the chain line in FIG. 4, when the gate type traveling frame 1 reaches the left end position, the traveling is stopped and at the same time the injection of the foamy lower treating agent is stopped, and the first polishing step of the vehicle body is completed. .

[Process of applying water-based wax to rotating brush]
Next, as shown in FIG. 5, with the gate type traveling frame 1 stopped at the left end position, the upper surface and the side surface rotating brushes 4, 5, 5.
5 in the normal direction (in the direction of arrow r _{1 in} FIG. 5), and the upper and side aqueous wax injection pipes 4 of the aqueous wax coating device W _2.
A water-based wax is sprayed from 0, 41, 41, and the water-based wax is directly spray-coated on the upper surface and the side surface rotary brushes 4, 5, 5. In this coating step, the cationic activator in the coated water-based wax and each rotating brush 4,
It is continued for a period of time, for example, about 5 seconds, until the insoluble water-based wax component is sufficiently produced by reacting with the anionic activator in the pretreatment agent attached in the first polishing step to 5 and 5.

[Second Polishing and Rinse Step] When the above-mentioned aqueous wax coating step is completed, the rinse apparatus R is kept while the aqueous wax coating apparatus W ₂ is continuously kept in the operating state.
Fresh water is injected from the fresh water injection pipe 37, and the traveling frame 1 is moved to the right in FIG. According to this approach, the vehicle body surface coated with the water-based wax is re-polished by the upper surface and the side surface rotary brushes 4, 5, 5 in the same order as in the case of the previous brushing cleaning, and is sprayed from the rinser R. Excess wax on the car body surface is washed away by the fresh water. In the second polishing step, the pair of side surface rotating brushes 5 and 5 are in a reverse state (direction of arrow r _{2 in} FIG. 6B) after polishing the front surface of the vehicle body, that is, when polishing both side surfaces and the rear surface of the vehicle body. .

In the second polishing step, the insoluble aqueous wax component sufficiently generated and retained in the rotary brushes 4, 5 and 5 in the previous step, that is, the step of applying the aqueous wax to the rotary brush, and the second polishing step. The insoluble aqueous wax component produced by the contact reaction between the water-based wax applied in the process and the pretreatment agent adhered on the vehicle body surface in the first polishing process is applied to each part of the vehicle body surface by the polishing action of the rotating brushes 4, 5, and 5. It can be rubbed to form a thick wax coating there.

Further, by spraying fresh water from the rinse device R, the water containing the activator of the water-based wax on the vehicle body surface is effectively washed off by the fresh water, and the wettability of the residual water on the vehicle body surface to the vehicle body surface is improved. Therefore, it is possible to easily blow off water from the vehicle body surface in the drying step described later.

Thus, when the gate type traveling frame 1 reaches the right end position as shown by the chain line in FIG. 6, the traveling of the gate type traveling frame 1 is stopped and at the same time the electromagnetic valve 48 is closed to stop the injection of the water-based wax. , The second polishing and rinsing steps are completed.

[Brush Washing Step] When the second polishing and rinsing steps are completed, as shown in FIG. 7, the gate type traveling frame 1 is stopped at the right end position, and the upper surface and the side surface rotary brushes 4, 5, 5 are kept. Continues to reverse (Figure 7 arrow r
₂ directions), and further, the solenoid valves 39 and 47 are continuously opened, and only clean water is supplied from the injection pipes 37; 40 and 41 of the rinse device R and the water-based wax coating device W ₂ to the rotary brush 4,
5, the electromagnetic valve 56 is closed, and the electromagnetic valve 55 is opened to inject fresh water from the injection pipes 49, 50 of the detergent applying apparatus C to the rotary brushes 4, 5, 5. Thus, the fresh water sprayed can immediately wash off the water-based wax component adhering to the brushes from the rotating brushes 4, 5, 5.

After spraying clean water or detergent to the rotary brushes 4, 5 and 5 for about 10 seconds, all electromagnetic valves are closed to stop spraying clean water or detergent, and then the rotary brushes 4 and 5. Stop the rotation of 5 and 5. After that, the upper surface rotating brush 4 is flipped up to the upper storage position X as described above, and further the pair of left and right side surface rotating brushes 5 and 5 are opened to the outside, and the brush washing process is completed.

[Drying Step] Finally, the gate type traveling frame 1 at the right end position in FIG. 8 is moved backward again, the upper surface air blowing nozzle 23 is lowered to an appropriate position, and then the air blower 24 is driven to drive the pair of side surface nozzles 22. , 22 and the upper surface blowing nozzle 23 blow the dry air all at once, the dry air is blown onto the entire surface of the vehicle body after the rinsing, whereby water droplets on the surface of the vehicle body can be blown off. When the gate type traveling frame 1 reaches the left end position, the traveling of the gate type traveling frame 1 is stopped and the blower 2
The driving of No. 4 is stopped and the drying process of the vehicle body is completed.

After the above steps, all the steps of cleaning the car body by brushing, polishing with a foamy pretreatment agent, polishing and rinsing with an aqueous wax, brushing and drying the car body have been completed. Wipe off residual water drops on the car body surface by hand.

By the way, since the water-based wax component adhering to the rotary brushes 4, 5, 5 can be immediately washed out by the fresh water sprayed from each spray pipe in the brush washing process, the rotary brushes 4, 5, 5 in the second polishing process. The water-based wax adhering to No. 5 can be washed off early and thoroughly before the next polishing method is performed, so that the wax attached to the brushes 4, 5 and 5 is concentrated due to water evaporation. Since it can be prevented from firmly adhering to the rotating brushes 4, 5, and 5, the concentrated wax is rubbed against the vehicle body surface in the next brushing cleaning step with the dirt taken in. It is possible to avoid inconveniences such as making the vehicle dirty or making it difficult to remove the dirt on the vehicle body surface. Therefore, even though the rotating brushes 4, 5 and 5 are shared by the brushing cleaning process and the polishing process, the cleaning effect is not likely to deteriorate in the next brushing cleaning process, and a good polishing effect is always expected. can do. Moreover, the rotating brushes 4, 5,
Before the water-based wax component is concentrated and firmly adhered to 5, the water-based wax component can be washed away by simply spraying clean water, so that the work of removing the water-based wax component can be performed easily and quickly.

The brush washing step of washing out the water-based wax from the rotary brushes 4, 5 and 5 is carried out before the drying step while particularly using fresh water and rotating the rotary brushes 4, 5 and 5. Rotating brush 4, during the process
5 and 5 can be effectively washed with fresh water, and the inside of the gate-shaped traveling frame 1 can be effectively washed with a large amount of fresh water scattered from the rotating brushes 4, 5 and 5. In the drying process, the wettability of the water dripping from the inside of the rotary brushes 4, 5, 5 and the gate-shaped traveling frame 1 to the vehicle body surface with respect to the vehicle body surface can be reduced so that it can be easily blown off from the vehicle body surface. Together with the rinsing effect on the vehicle body surface due to the rinsing step immediately after the second polishing, it can greatly contribute to the improvement of the drying effect.

In the above embodiment, the [first polishing step] may be replaced with a [water cleaning step] in which only fresh water is sprayed on the vehicle body surface. Thus, the above [water washing step]
After the brushing cleaning process is completed, as shown by the solid line in FIG. 9, the rotary brushes 4, 4 with the gate type traveling frame 1 at the right end position.
5 and 5 are stopped and the upper surface rotating brush 4 is moved to the upper storage position X.
Bounce up to open the pair of left and right side rotating brushes 5 and 5 to the outside, and then retreat the portal frame 1 to the left, and at the same time, inject fresh water from the fresh water injection pipe 37 of the rinser R. As a result, the surface of the vehicle body can be washed with the water pressure of fresh water, and the detergent and dirt remaining on the surface of the vehicle body after the completion of the blanking process can be strongly washed away.
When the gate type traveling frame 1 reaches the left end position, the traveling of the traveling frame 1 is stopped, the injection of fresh water is stopped, the upper surface rotating brush 4 is lowered from the upper storage position X, and the left and right side surface rotating brushes 5, 5 are
To close the above [water washing step].

Further, in particular, it has a function of applying a descaling agent to the vehicle body surface and removing the debris and deteriorated wax on the vehicle body surface using a rotating brush, and performing the removing step before the polishing step. When the present invention is applied to the apparatus thus obtained, the aqueous wax component adhered to the rotary brush in the previous polishing step can also be removed from the rotary brush in the removal step of the scale, etc. After performing the polishing process, it is not necessary to perform the brush washing process for the rotating brush each time the polishing process is completed, and the brush washing process for the rotating brush is not performed while performing the polishing process for a predetermined number (for example, 20 cars) of automobiles. May be controlled as follows.

Further, in the above-mentioned [brush washing step], instead of injecting clean water from each of the injection pipes 37; 49, 50; 40, 41 of the rinsing device R, the detergent applying device C and the water-based wax applying device W ₂ , Solenoid valve 56 of detergent applying device C
And the detergent is discharged from the injection pipes 49 and 50 of the device C.
Injection pipe 3 of rinsing device R and water-based wax coating device W ₂
7; 40, 41 sprays clean water respectively, or opens only the solenoid valves 55, 56 of the detergent coating device C, and the rinse device R and the solenoid valve 3 of the aqueous wax coating device W ₂
9; 47, 48 are all closed and only the detergent is sprayed from the spray pipes 49, 50 of the detergent applying apparatus C. In the [brush washing step], the rotating brushes 4, 5, 5
The water-based wax adhered to can be washed off with detergent and clean water, or only with detergent. In this case, as the detergent, one containing an activator such as nonion or anion can be used, but if a detergent containing an anion activator is used, the detergent adheres to the rotating brushes 4, 5, 5. Aqueous wax containing cationic activator can be neutralized with anionic activator in the detergent to make it easier for the aqueous wax to flow down from the rotating brushes 4, 5 and 5. Therefore, cleaning of the rotating brushes 4, 5 and 5 is efficient. Can be done well.

[0040]

As described above, according to the present invention, a step of brushing and cleaning the vehicle body surface of an automobile using a rotating brush provided on the traveling frame during traveling of the gate type traveling frame, and a step after the cleaning step After sequentially performing a polishing step of polishing the vehicle body surface, a drying step of blowing drying air to the vehicle body surface is performed, and in the polishing step, the water sprayed by the water-based wax coating device provided on the traveling frame is used. In the method for polishing a car, wherein the wax is rubbed against the vehicle body surface by the rotating brush, in the polishing step, after the rotating brush is separated from the vehicle body surface and before the drying step, the water-based agent attached to the rotating brush is used. In order to wash off the wax, clean water is sprayed onto the rotary brush and the rotary brush is rotated. The water-based wax on the brush can be washed off quickly and thoroughly before the next glazing method is performed. Therefore, the wax on the brush is concentrated as the water evaporates and becomes firm on the brush. Since it can be prevented from adhering to the vehicle body in the next brushing cleaning step, the concentrated wax will be rubbed against the vehicle body surface in a state where dirt is taken in and stain the vehicle body surface or remove the dirt on the vehicle body surface. It is possible to avoid inconveniences such as making it difficult to perform, and as a result, despite the fact that the rotating brush is commonly used in the brushing cleaning step and the polishing step, the cleaning effect may deteriorate in the next brushing cleaning step. This is eliminated, and a good polishing effect can always be expected.

Further, since the brush washing step of washing the water-based wax from the rotary brush is performed before the drying step while using fresh water and rotating the rotary brush, the rotary brush is effectively washed with fresh water during the brush washing step. Not only can it be washed, but also the inside of the gate-shaped traveling frame can be effectively washed by the large amount of fresh water scattered from the rotating brush, which allows the body to be washed from the inside of the rotating brush and the gate-shaped traveling frame during the drying process. The wettability of the water dripping on the surface to the vehicle body surface can be reduced and it can be easily blown off from the vehicle body surface, so the drying effect can be improved, and as a result, the labor to wipe the water droplets manually after the drying process is completed. Can be reduced.

Further, since the residual water-based wax on the rotary brush can be washed away by simply spraying clean water, the work efficiency can be greatly improved as compared with the case where the wax removal work is performed manually.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing an embodiment of a car wash device used in the method of the present invention.

FIG. 2 is a pretreatment agent applying device provided in the car washing device,
A perspective view showing a piping system of a rinse device, a detergent applying device, and an aqueous wax applying device.

FIG. 3 is an operation diagram showing a brushing cleaning process for a vehicle body surface.

FIG. 4 is an operation diagram showing a first polishing process for a vehicle body surface.

FIG. 5 is an operation diagram showing a water-based wax coating process for a rotating brush.

FIG. 6 is an operation diagram showing a second polishing and rinsing step for the vehicle body surface.

FIG. 7 is an operation diagram showing a brush washing process.

FIG. 8 is an operation diagram showing a drying process for a vehicle body surface.

FIG. 9 is an operation diagram showing a water washing step which replaces the first polishing step.

[Explanation of symbols]

V automobile W ₂ water-based wax coating device 1 gate type traveling frame 4 upper surface rotating brush as a rotating brush 5 side surface rotating brush as a rotating brush

Claims (1)

[Claims] 1. A rotary brush (4, 5) provided on the traveling frame (1) is used during traveling of a gate type traveling frame (1) that can reciprocate in the front-back direction across a vehicle (V). After sequentially performing a step of brushing and cleaning the vehicle body surface of the automobile (V) and a polishing step of polishing the vehicle body surface after the brushing and cleaning, a drying step of blowing drying air to the vehicle body surface is performed. In the polishing step, the water-based wax sprayed by the water-based wax coating device (W ₂ ) provided on the gate type traveling frame (1) is rubbed against the vehicle body surface by the rotating brushes (4, 5). In the discharging method, after the rotating brushes (4, 5) are separated from the vehicle body surface in the polishing step and before the drying step, the rotating brushes (4, 5) are washed to wash away the aqueous wax adhering to the rotating brushes (4,5). A method for polishing an automobile, characterized by spraying clean water onto the brush (4,5) and rotating the rotating brush (4,5).