KR100801548B1 - Spray apparatus structure for wax supply - Google Patents

Abstract

A structure of a wax supply spray apparatus is provided to supply wax for each non-coated part automatically and to emit the cleaning operation of inside the apparatus due to simple internal structure. A structure(A) of a wax supply spray apparatus comprises a fluid flow passage for flowing the fluid supplied from the outside and composed of an inlet passage connected with an external wax supply source and an outlet passage connected to an external spray pipe and plural air flow passages flowing the air supplied from the outside. A first air flow passage(10-1) of plural air flow passages has a path of a first diameter and a hollow space of a second diameter. A piston member is installed at the first air flow passage to move vertically over the path of a first diameter and the hollow space to by the air supplied from the outside. The piston member has a body unit having a diameter corresponding to the path of a first diameter and a base unit of a diameter corresponding to the hollow space of the second diameter. A second air flow passage(10-2) communicates with the hollow space and connects with an external driving device feeding the air for driving the piston member to the lower side. A third air flow passage(10-3) communicates with the hollow space and connects with an external driving device feeding the air for driving the piston member to the upper side. A fourth air flow passage(10-4) is connected with an external driving device supplying the air to the fluid flowing through the fluid flow passage. The piston member moves upward by the air fed through the third air flow passage and cuts off the inflow of the fluid into the spray device by closing up the inlet passage of the fluid flow passage. The piston member moves down by the air fed through the second air flow passage and makes the fluid flow into the spray device by opening the inlet passage of the fluid flow passage.

Description

SPRAY APPARATUS STRUCTURE FOR WAX SUPPLY}

1 is a cross-sectional view showing the internal configuration of a wax spray apparatus structure according to an embodiment of the present invention.

2 is a view showing the configuration of a piston member that can be mounted and used inside the spray apparatus structure shown in FIG.

FIG. 3 is a cross-sectional view showing the air flow path and the operating state of the piston member when the spray device structure shown in FIG. 1 moves to the closed state.

FIG. 4 is a cross-sectional view showing an operating state of a piston member and a flow path of wax fluid and air when the spray device structure shown in FIG. 1 moves to an open state.

<Explanation of symbols for the main parts of the drawings>

10: main passage

10-1: first passage

10-2: second passage

10-3: third passage

10-4: fourth passage

42: first air outlet

52: second air outlet

70: check valve

90-1: passage of first diameter

90-2: hollow space of second diameter

100: piston member

A: spray device structure

The present invention relates to a spray device that can be used in a fluid supply device, and more particularly, in supplying a fluid, preferably wax, to a specific part of the car during the assembly process of the car, such a wax supply can be controlled automatically. The present invention also relates to an automatic spraying device structure for supplying wax, which can prevent a passage inside the spraying device structure from being blocked by wax.

In general, during the assembling process of the vehicle, a painting process is performed on the vehicle. However, the reality of the automobile assembly process is that it is virtually impossible to perform a painting process on a specific assembly portion of the automobile, for example, a portion that is hardly visible from the outside of the automobile, such as a portion welded to iron and iron. If the painting process is difficult to carry out and the car is left unused, the unpainted portion is more susceptible to corrosion and rusted compared to the portion where the painting process is performed. In order to prevent such a problem, the unpainted portion during the automobile assembly process is sprayed with wax instead of the painting process to prevent rust.

However, the unpainted portion is located in an inconspicuous place unlike the appearance of the vehicle body in which the painting process is performed. Therefore, in carrying out the wax spraying step, the worker sprays the wax on the unpainted portion one by one along the vehicle line using a manual spray gun under the vehicle.

Such manual work is a very cumbersome task and causes a cost increase, and there is a need for an automated wax coating system that can replace such manual wax coating. In addition, the spray gun used by the operator has a problem that its internal structure is quite complicated and not easy to manufacture. Moreover, the automotive coating waxes used in the spray guns have significant viscosity, which often leads to the problem that the wax flows into the spray gun and the wax flow path is clogged. Therefore, in order to remove the wax blocking the flow path, the operator has to disassemble the spray gun and clean the flow path inside thereof.

The present invention is to solve the problems of the conventional automotive wax spraying process, which can be used in an automated wax coating system that can replace the manual wax spraying, and can automatically adjust the wax supply spray It is an object to provide a device structure.

Another object of the present invention is to provide a spray device structure that can be used in an automated wax coating system, the structure of which is simple, and which can eliminate the separate internal cleaning operation.

In order to achieve the above object, there is provided a spray device structure that is used in an automated fluid supply system, which can automatically supply and shut off the fluid, the spray device structure is a fluid flow passage through which the fluid supplied from the outside flows, The inflow passage is connected to an external wax source, the outflow passage is connected to an external spray tube, and a fluid flow passage is formed, and a plurality of air flow passages through which air supplied from the outside is formed, and the plurality of air flows The first air flow passage of the passages includes a passage of a first diameter and a hollow space of a second diameter larger than the first diameter, wherein the first air flow passage has a diameter corresponding to the passage of the first diameter. The piston member including a body portion and a base portion having a diameter corresponding to the hollow space of the second diameter; Air is supplied from the upper and lower portions of the plurality of air flow passages so as to be movable upward and downward over the passages of the hollow spaces, wherein the second air flow passages communicate with the hollow spaces, and the piston member Is connected to an external drive device for supplying air for driving the lower side, the third air flow passage of the plurality of air flow passages communicate with the hollow space, the air for driving the piston member upward And a fourth air flow passage of the plurality of air flow passages is connected to an external air source for supplying air to the fluid flowing through the fluid flow passage, and the piston member. Is moved upward by the air supplied through the third air flow passage, so that the flow of the fluid flow passage Closing the passage to block inflow of the fluid into the spray device structure, wherein the piston member moves downward by air supplied through the second air flow passage, thereby closing the inflow passage of the fluid flow passage. By opening, the fluid is configured to be introduced into the device in the spray.

According to an embodiment of the present invention, the second air flow passage is formed with a first air inlet communicating with the hollow space, and the third air flow passage has a second air outlet in communication with the hollow space. An addition can be formed.

According to one embodiment of the invention, the base portion of the piston member, an upper base portion formed with an upper step portion that can contact the upper surface of the hollow space, and a lower portion that can contact the lower surface of the hollow space It may include a lower base portion formed with a stepped portion.

According to an embodiment of the present invention, the first air inlet and outlet portion communicates with a first space of the hollow space formed when the upper step portion is in contact with an upper surface of the hollow space, thereby allowing air to flow through the first space. Is supplied to move the piston member downward, and the second air outlet portion communicates with the second space of the hollow space formed when the lower step portion is in contact with the bottom surface of the hollow space. Air may be supplied through a space to move the piston member upward.

According to an embodiment of the present invention, a check valve may be installed in the fourth air flow passage.

Preferably, the external drive device is a solenoid valve.

According to one embodiment of the present invention, a zero ring may be mounted around the body portion and the base portion of the piston member.

The configuration, objects, and effects of the present invention described above will be more clearly understood through the following detailed description of preferred embodiments of the present invention.

Applicant is developing an automated wax spray system that replaces the conventional manual car wax spray process. In connection with such systems and developments, there is a need for a spray device structure for spraying a predetermined amount of wax on a predetermined portion of the vehicle, and the present applicant has developed an automated wax spray device structure that replaces a conventional manual spray gun, The present invention has been completed.

That is, as mentioned above, conventionally, the operator places the spray gun at a predetermined part of the vehicle while the operator grabs a spray device such as a spray gun, and then presses a predetermined button to spray wax on the part. .

However, the spray gun is complicated in its internal structure and difficult to manufacture, and its price is also high. In addition, the high viscosity wax causes problems such as clogging of the wax flow path. The present invention provides a spray device structure for wax supply that replaces such a manual spray gun. Hereinafter, the structure of such a spray apparatus structure is demonstrated in detail. In the following description, descriptions of configurations already known in the art and known technologies applicable to the present invention will be omitted.

1 shows a cross-sectional view of a spray device structure A for wax supply according to one embodiment of the invention.

The spray device structure A is provided with a plurality of passages therein. That is, as the fluid flow passage through which the fluid (wax) flows, the wax inlet 20, the first passage 10-1, the main passage 10, the fourth passage 10-4, communicating with the inlet portion, There is a wax outlet portion 30 in communication with the fourth passage, and as a flow passage of air supplied from the outside, the first accommodating portion 40, the second accommodating portion 50, the air inlet 60, and the wax There is a third passage 10-3 for supplying air, and there is a second passage 10-2 which is equipped with a piston member 100, which will be described later, to provide a movement passage of the member. As they are communicated with each other.

In more detail, the first passage 10-1 communicates with the wax inlet 20, and the wax supplied through an external wax source (not shown) connected to the wax inlet 20 may be the first. It is introduced into the spray apparatus structure A of the present invention through the passage 10-1. Meanwhile, as shown in FIGS. 3 and 4, the wax inlet 20 and the wax source are interconnected through the wax inlet pipe 300. At this time, according to a preferred embodiment of the present invention, the inner surface of the wax inlet 20 is formed with a screw portion for secure engagement with the wax inlet pipe (300). According to another embodiment, the wax inlet pipe 300 may be fastened to the wax inlet 20 by fitting.

The second passage 10-2 is a passage in which the piston member 100 (see FIGS. 2 to 4), which blocks and permits the inflow of wax, is mounted and guides the vertical movement of the piston member 100. As shown, the second passage 10-2 is formed with a first diameter corresponding to the diameter of the main body 140 of the piston member 100, which will be described later, and has a second for accommodating the base portion 120. It communicates integrally with the hollow space 90 of diameter. On the other hand, the diameter of the hollow space is formed larger than the first diameter of the second passage (10-2) to correspond to the diameter of the upper and lower base portions (122, 126) to be described later. Therefore, the piston member 100 is closely attached to the second passage 10-2 and the hollow space 90, and can move up and down by air supplied from the outside. Referring to Figure 2 the more detailed configuration of the piston member 100 as follows.

The piston member 100 moves up and down by the pressure of the air supplied from the outside, and serves to block or allow the supply of the wax flowing into the spray device structure A. FIG. As illustrated, the piston member 100 is largely provided with a lower base portion 122, a lower step portion 122a, an upper base portion 126, and an upper base portion 126 provided on the lower surface of the lower base portion 110. A base portion 120 including an upper stepped portion 126a provided on an upper surface of the upper side portion) and a connecting portion 124 interconnecting the lower base portion and the upper base portion; A main body part 140 provided on an upper surface of the upper base part 126; And an upper end 160.

The connection portion 124 of the base portion is configured to be smaller than the diameter of the upper and lower base portions 126 and 122, thereby forming the first groove 124a therebetween. As shown in FIG. 3, the first O-ring 160 is mounted in the first groove 124a. In addition, the second grooves 140a and 140b are formed in the same manner between the center of the main body 140 and between the main body 140 and the upper end 160 to mount the second 0-rings 150a and 150b. . Therefore, the piston member 100 moves up and down in the 2nd channel | path 10-2 and the hollow space 90 in the airtight state as a whole.

On the other hand, the upper stepped portion 126a has a diameter smaller than the upper base portion 126, and as will be described later, when the piston member 100 moves upward by air supplied from the outside, the hollow space ( The upper surface 90a of 90 is brought into contact. As a result, a predetermined first space 92a is formed by the upper base portion 126, the upper stepped portion 126a, and the inner wall surface of the hollow space, through which the air from the outside is hollow 90 May be introduced (see FIGS. 3 and 4).

Similarly, the lower stepped portion 122a has a diameter smaller than the lower base portion 122, and as described later, when the piston member 100 moves downward by air supplied from the outside, the hollow space ( The lower surface 90b of the substrate 90. As a result, a predetermined second space 92a is formed by the lower base portion 122, the lower stepped portion 122a, and the inner wall surface of the hollow space, through which air flows from the outside into the hollow space 90. Can be introduced (see FIGS. 3 and 4).

Referring again to FIG. 1, the third passage 10-3 is a passage for supplying predetermined air to the wax introduced into the spray apparatus structure A. FIG. In other words, the fluid used in the present invention, i.e., wax, is considerably viscous, and when such viscous fluid is periodically used repeatedly, the fluid may stick to the inner wall surface of the passage. In order to prevent such a phenomenon, by supplying a high-pressure fluid from the outside to the wax and discharged to the outside together, while minimizing the problem that the wax remains in the passage, and removes the wax remaining in the passage wall to the maximum, Clean the inside of the spray tube (400). In this regard, it will be described in more detail below.

The fourth passage 10-4 is a passage communicating with the fluid outlet 30, and the wax fluid introduced through the main passage 10 and the air supplied through the third passage 10-3 are formed. Combined in four passages 10-4, it is sprayed through a fluid outlet 30 through a spray tube 400 to a predetermined portion of the vehicle.

On the other hand, the piston member 100 attached to the second passage 10-2 moves up and down by air of a predetermined pressure supplied from the outside. To this end, as shown in the figure, the spray device structure (A) and the first receiving portion 40 in communication with the upper surface of the hollow space 90, and the lower surface of the hollow space 90 and The 2nd accommodating part 50 which communicates is formed.

Specifically, the wax opening air inlet pipe 500a is fastened to the first accommodating part 40. The first accommodating portion and the wax-open air inlet pipe may be fastened to each other by screw engagement or interference fit. In addition, the first housing portion 40 communicates with the first space 92a and opens the air for opening, which is introduced through the wax open air inflow pipe 500a, through the first space. The 1st air inflow-out part 42 introduce | transduces into this is provided. Therefore, when the spray device structure of the present invention is driven, air for wax opening passes through the first storage part 40 through the outflow pipe 500a, and the first air inflow port 42 and the first space 92a. It may be introduced into the hollow space 90 through). As a result, a predetermined pressure is applied to the upper base portion 126 and the upper step portion 126a of the piston member 100, so that the piston member 100 moves downward. As a result, the first passage 10-1 is opened, and the wax flowing through the wax inflow pipe 300 is discharged to the outside via the spray device structure A.

The wax enclosed air inlet pipe 500a is fastened to the second accommodating part 50. The second accommodating portion and the wax-open air inlet pipe may be fastened to each other by screw engagement or interference fit. In addition, the second housing portion 50 communicates with the second space 92b, and the air 90 for closing the air flowing in through the wax open air inlet pipe 500b passes through the second space. The 2nd air inflow-out part 52 introduce | transduces into this is provided. Therefore, when the spray device structure of the present invention is driven, the wax closing air passes through the second inlet 50 through the outlet pipe 500b, and the second air outlet 52 and the second space 92b. It may be introduced into the hollow space 90 through). As a result, a predetermined pressure is applied to the lower base portion 122 and the lower step portion 126a of the piston member 100, so that the piston member 100 moves upward. As a result, the first passage 10-1 is blocked so that the wax can no longer flow into the spray device structure A.

The wax open air inlet pipe 500a and the wax closed air inlet pipe 500b are connected to respective ports of a solenoid valve (not shown). Therefore, when the solenoid valve is operated, if air is discharged through one port according to a predetermined signal, the air is introduced into the spray device structure A only through the inlet pipe connected to the port. On the contrary, as the signal changes, the air outlet port is correspondingly changed so that air is also introduced into the apparatus A through an inlet tube corresponding to the changed port. As described above, according to the present invention, the piston member 100 is automatically lifted by introducing air into the device A only through one of the inlet and outlet pipes 500a and 500b according to a signal using a solenoid valve having a simple configuration. As a result, the introduction of wax into the device A can be controlled automatically. Since the configuration of the solenoid valve and the inflow and outflow operation of the gas through the port are already known in the art, the detailed description thereof will be omitted.

Referring again to FIG. 1, as described above, the third passage 10-3 is a passage for supplying predetermined air to the wax introduced into the spray apparatus structure A, and receives air of a predetermined pressure from the outside. By introducing through the third passage and supplying the wax to be discharged together, it minimizes the problem of the wax remaining in the passage and removes the wax remaining in the passage wall as much as possible. According to the present invention, an air inlet pipe 600 is installed at one end of the third passage 10-3, that is, the air inlet 60. The air inlet pipe is connected with a predetermined external air source (not shown) to supply air of a predetermined pressure from the source into the spray device structure A.

On the other hand, a check valve 70 is formed between the third passage 10-3 and the air inlet 60. The check valve 60 allows fluid flow in one direction and allows the air flowing through the air inlet 60 to pass, but blocks the flow of fluid from the opposite direction. That is, since the third passage 10-3 communicates with the main passage 10, the wax flowing through the main passage 10 can also flow through the third passage 10-3. If it is left as it is, since the wax is discharged to the outside through the third passage, according to the present invention, by installing a check valve 70 in the middle of the third passage (10-3), the wax is discharged to the third passage (10-) 3) to prevent flow to the outside.

On the other hand, the reference numeral 400 denotes a spray tube, which is configured to be positioned at a predetermined portion of the vehicle to which wax is to be applied, so that the wax discharged from the spray device structure A is applied to the portion of the vehicle. do. Further, reference numerals 80a and 80b denote bolt fastening holes for fixing the spray apparatus of the present invention to a predetermined site, and may be used by fixing the spray apparatus of the present invention to a specific place by fastening bolts through the holes. have.

Below, the operation | movement of the spray apparatus structure A which has the above structure is demonstrated with reference to FIG. 3 and FIG.

First, Figure 3 shows a state in which the spray device structure (A) of the present invention is blocking the inflow of wax, in this state, the piston member 100 by the air introduced through the wax closed air inlet pipe (500b) Shows a state in which the first passage 10-1 is closed by moving upward. 4 shows a state in which the wax inlet of the spray apparatus structure B is allowed, in which the wax introduced through the wax inlet tube 300 passes through the inside of the spray apparatus structure B and the spray tube ( 400 is discharged.

First, in the state shown in FIG. 3, when the motor vehicle reaches a predetermined position along the assembly line, an automated wax supply system that can be mounted and used with the spray device structure A of the present invention detects this. Accordingly, under the control of a control unit (not shown) provided in the system, a solenoid valve (not shown) is operated to discharge air through the wax open air inlet pipe 500a connected to a predetermined first port (not shown). . The discharged air is introduced into the first air outlet 42 through the first accommodating part 40 to which the outlet pipe 500a is fastened, and then flows into the first space 92a. The air introduced through the first space 92a presses the upper base portion 126 and the upper step portion 126a of the piston member 100, and the piston member 100 moves downward correspondingly. As the piston member moves downward, the air between the lower stepped portion 126a and the hollow space 90 is also pushed downward to be discharged to the outlet pipe 500b through the second air outlet 52. (See Figure 4).

On the other hand, as the piston member 100 moves downward, the first passage 10-1 blocked by the piston member is opened. Accordingly, the wax supplied from the wax source (not shown) flows into the piston through the wax inlet pipe 300 and flows along the main passage 10. In this case, the control unit also drives an air supply source (not shown) to supply air through the air inlet pipe 600 to face the main passage 10. The supplied air is discharged to the wax outlet pipe 400 with the wax fluid flowing in the main passage 10, and the discharged wax fluid is a predetermined portion of the vehicle through the spray unit connected to the outlet pipe 400. Is sprayed on. On the other hand, the supplied air is supplied to the wax fluid at a predetermined large pressure but less than the wax fluid pressure. Therefore, the viscous wax fluid can be prevented from adhering to the inner wall of the passage as much as possible, and can also serve to remove residual wax.

When a predetermined amount of wax is sprayed on a predetermined portion of the vehicle, another signal is input to the solenoid valve under the control of the controller. Correspondingly, as the solenoid valve operates, air is discharged through the wax closed air inlet pipe 500b connected to a predetermined second port (not shown). The discharged air flows into the second air inlet and outlet 52 through the second accommodating part 50 to which the outlet inlet pipe 500b is fastened, and then flows into the second space 92b. The air introduced through the second space 92b presses the lower base portion 122 and the lower step portion 126a of the piston member 100, and the piston member 100 moves upward correspondingly. As the piston member moves upward, air between the upper stepped portion 126a and the hollow space 90 is also pushed upward and discharged to the outlet pipe 500a through the first air outlet 42. (FIG. 3).

Meanwhile, as the piston member 100 moves upward, the main body 140 of the piston member 100 closes the first passage 10-1. Thus, the wax fluid no longer enters into the spray device structure A. At this time, according to a preferred embodiment of the present invention, even if the additional supply of the wax is blocked, by continuously supplying air through the air inlet pipe 600 for a predetermined time, to discharge the wax that can remain in the spray device structure (A) And the spray pipe 400 which has a fine passage structure is cleaned. Therefore, the phenomenon of clogging the internal passage of the spray device by the highly viscous wax can be significantly reduced, which solves many problems of the conventional manual spray gun. Later, when another vehicle comes along the automobile assembly line, the above operation is repeatedly performed, so that the wax fluid is applied to the automobile.

While the present invention has been described with reference to the preferred embodiments, it should be noted that the present invention is not limited by these embodiments. That is, the present invention may be variously modified and modified without departing from the scope of the following claims, which are all included in the claims. For example, although the spray device structure (A) of the present invention has been described as one component used in a system for automatically supplying wax to a specific part of an automobile, it is various in the field where the fluid supply control is required in addition to the automobile field. Can be applied.

As described above, according to the present invention, it is used in a system for automatically supplying wax instead of the conventional technique of supplying wax to the unpainted portion of a vehicle manually by hand, and automatically supply wax fluid to each unpainted portion. At the same time as the completion of the supply, additional wax supply is cut off, so that the uncoated portion of the vehicle to be waxed can be reliably and automatically applied. In addition, unlike the conventional spray gun has a complicated internal structure, the spray device structure of the present invention forms a plurality of passages of a simple configuration therein, is equipped with a solenoid valve and the like of a simple structure, the discharge portion of the device By simply installing a spray tube set to be positioned at a predetermined part of the vehicle, the desired wax spraying operation can be accurately performed.

Claims (8)

Used in automated fluid supply systems, the spray device structure allows the fluid to be automatically supplied and shut off. The spray device structure includes a fluid flow passage through which fluid from an outside flows, the inflow passage being connected to an external wax source, and the outflow passage being connected to an external spray tube; A plurality of air flow passages through which air from the outside flows Is formed, The first air flow passage of the plurality of air flow passages includes a passage having a first diameter and a hollow space having a second diameter larger than the first diameter, wherein the first air flow passage has a passage having the first diameter. A piston member comprising a body portion having a diameter corresponding to and a base portion having a diameter corresponding to the hollow space of the second diameter, vertically up and down over the passage of the first diameter and the hollow space by air supplied from the outside. It is mounted to be movable The second air flow passage of the plurality of air flow passages communicates with the hollow space and is connected to an external drive device for supplying air for driving the piston member downward, A third air flow passage of the plurality of air flow passages is in communication with the hollow space and is connected to the external drive device for supplying air for driving the piston member upwards, A fourth air flow passage of the plurality of air flow passages is connected to an external air source for supplying air to the fluid flowing through the fluid flow passage, The piston member is configured to move upward by air supplied through the third air flow passage, to block inflow of the fluid into the spray device structure by closing the inflow passage of the fluid flow passage, The piston member is configured to move downward by air supplied through the second air flow passage and open the inflow passage of the fluid flow passage so that the fluid can be introduced into the apparatus in the spray; Spray device structure characterized in that. The method of claim 1, wherein the second air flow passage is formed with a first air inlet to communicate with the hollow space, the third air flow passage is formed with a second air outlet in communication with the hollow space is formed. Spray device structure. The base part of the said piston member is an upper base part in which the upper step part which can contact the upper surface of the hollow space, and the lower base in which the lower step part which can contact the lower surface of the hollow space is formed. A spray device structure comprising a portion. The method of claim 3, wherein the first air outlet portion communicates with the first space of the hollow space formed when the upper step portion is in contact with the upper surface of the hollow space, to supply air through the first space The piston member is moved downwards, and the second air inflow and out portion communicates with a second space of the hollow space formed when the lower step portion contacts the bottom surface of the hollow space, and through this second space. A spray device structure, characterized in that for supplying air to move the piston member upward. The spray device structure according to any one of claims 1 to 4, wherein a check valve is provided in the fourth air flow passage. The spray device structure according to claim 5, wherein the external drive device is a solenoid valve. The spray device structure according to claim 6, wherein a 0-ring is mounted around the body portion and the base portion of the piston member. 8. The spray device structure of claim 7, wherein the fluid is a wax.

Images