KR100903330B1 - Clear-gun automatic spray device for vehicle paintig - Google Patents

Abstract

Exemplary embodiments of the present invention include a spray body for spraying clear paint as compressed air through the spray nozzle portion while having a grip portion and a spray nozzle portion, and rotatably rotatable to the spray nozzle portion side corresponding to the grip portion. A paint spray gun unit formed as a trigger to be mounted; and ii) at least one mounting bar for mounting the spray body, and a hanger body having a support hole into which the spray nozzle part of the spray body is fitted. And a hanger unit for discharging the clear paint sprayed through the spray nozzle unit to the bottom of the booth through the support hole, and iii) a mounting portion formed at one side of the hanger body, and operated according to the supply pressure of the hanger. A first working cylinder in which the rod is advanced back and forth toward the trigger of the paint spray gun unit, and i) the first A second working cylinder installed to be connected to the same cylinder to raise and lower the first working cylinder in an up-down direction according to whether or not the working pressure is supplied; A first solenoid valve for varying the flow path in accordance with an electrical signal; and iii) a second solenoid valve for varying the flow path in accordance with an electrical signal input from the controller to supply or discharge the working pressure of the second working cylinder. Including, when the paint spray gun unit is not used for a long time, by spraying the clear paint periodically through the paint spray gun unit to clear the stagnant clear paint inside the paper pipe or clear paint supply hose or paint spray gun unit Clear gun automatic spraying device for body painting The.

Body, paint, clear, paint, auto, spray

Description

Clear gun automatic spraying device for body painting {CLEAR-GUN AUTOMATIC SPRAY DEVICE FOR VEHICLE PAINTIG}

An exemplary embodiment of the present invention relates to a clear gun automatic injection device applied to a clearing process of a vehicle body painting line, and more particularly, a branch pipe connected to a clear coating booth in a main pipe, and a clear paint supply hose connected to the branch pipe. And it relates to a clear gun automatic injector for vehicle body coating that can prevent the various kinds of fittings or the clear paint in the interior of the clear paint injector.

In general, the coating quality of the vehicle body shell, for example, of the vehicle should be free from deterioration and rust of the coating film even if used over a long period of time under all circumstances, and furthermore, it is necessary to maintain the aesthetic appearance by maintaining the gloss or color of the coating film.

In the painting process of the vehicle body, after the electrodeposition of the vehicle body subjected to the pretreatment process, the intermediate coating is performed for adhesion and smoothness, and the upper coating base is coated for the aesthetics of the vehicle body.

Then, a clear layer is coated on the top coat to protect the color of the vehicle body, improve the appearance, and protect the coating from the outside.

In the clearing process of the vehicle body coating line for coating the clear layer on the vehicle body as described above, a clear paint injector capable of injecting the clear paint supplied from the clear paint supply unit to the vehicle body as compressed air is provided.

In this case, the clear paint is supplied from the clear paint supply unit to the paper pipe through the main pipe, and is supplied to the clear paint injector through the clear paint supply hose connected to the paper pipe.

However, in such a prior art, the clear paint has a unique characteristic that it hardens faster than the general paint, and thus, when the clear paint sprayer is not used for a long time in a state where the clear paint sprayer is mounted on a separate holder, the paper and clear paint The supply paint and the various kinds of fittings or the clear paint stagnated inside the paint injector are hardened.

Therefore, in the related art, when the clear paint is hardened in the branch pipe, the clear paint supply hose, and various fittings or paint injectors, the paper pipe, the clear paint supply hose, and the various fittings or paint injectors can be replaced. Since there is only one, the replacement time is increased, there is a problem that the replacement cost is increased.

Therefore, an exemplary embodiment of the present invention has been created to solve the above problems, the branch pipe connected to the clear paint booth in the main pipe, the clear paint supply hose connected to the branch pipe, and various fittings or clear paint It is an object of the present invention to provide a clear gun automatic injector for vehicle body coating that can automatically spray the clear paint periodically to prevent the clear paint from solidifying in the injector.

According to an exemplary embodiment of the present invention for achieving the object as described above, the automatic injection device for body coating clear gun, i) spraying the clear paint as compressed air through the injection nozzle portion while having a gripping portion and an injection nozzle portion; A spray body configured to be sprayably mounted on the spray nozzle part side in correspondence with the gripping portion, and ii) at least one mounting bar for mounting the spray body. A hanger unit having a hanger body having a support hole into which a spray nozzle portion of the spray body is fitted, formed on a bottom surface thereof, and a hanger unit for discharging the clear paint sprayed through the spray nozzle portion to the bottom of the booth through the support hole; It is mounted on the mounting part formed on one side of the hanger body, and the operating rod depending on whether the working pressure is supplied A first operation cylinder which is moved forward and backward toward the trigger of the paint spray gun unit, and iii) a second operation which is installed to be connected to the first operation cylinder to raise and lower the first operation cylinder in the vertical direction depending on whether or not the operating pressure is supplied. A cylinder, iii) a first solenoid valve for varying a flow path in accordance with an electrical signal input from a controller to supply or discharge the operating pressure of the first working cylinder, and iii) supply the operating pressure of the second working cylinder. Or a second solenoid valve configured to vary a flow path according to an electrical signal input from the controller to discharge.

In the automatic clear gun automatic injector for painting the body, the hanger body is open in the front, the first wall is formed on the rear, the second wall facing each other is formed on the side thereof, the mounting bar is at both ends thereof It may be installed to be connected to the second wall, respectively.

In the vehicle body clearing gun automatic spray device, a guide hole for guiding forward and backward and vertical movement of the first operating rod may be formed in the second sidewall of the side corresponding to the mounting part.

In the automatic clear gun automatic injector for painting the body, a connection line connecting the first operation cylinder and the first solenoid valve may be rotatably connected to the first solenoid valve in response to the lifting operation of the first operation cylinder. have.

In the automatic clear gun automatic injector for painting the body, a clear paint discharge pipe communicating with the support hole may be installed on the bottom surface of the hanger body.

In the automatic clear gun automatic injector for painting the body, a ring-shaped mounting protrusion may be formed at the tip of the gripping portion of the spray body corresponding to the mounting bar.

According to the above-described automatic spraying device for vehicle body clearing gun according to an exemplary embodiment of the present invention, when the paint spraying gun unit is not used for a long time, the clear paint is periodically placed while the paint spraying gun unit is mounted on the hanger unit. It is possible to automatically spray, so that the clear pipe from the main pipe connected to the clear coating booth, the clear paint supply hose connected to the branch pipe, and various fittings or the road spray gun unit can be prevented from hardening.

For this reason, in the present embodiment, since the clear paint does not harden inside the various pipes and the paint spray gun unit for supplying the clear paint, it is possible to reduce the time and cost required to replace the various pipes and the paint spray gun unit. have.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

1 is a perspective view showing the overall configuration of the automatic injection device for clearing the body paint according to an exemplary embodiment of the present invention, Figure 2 is a clear gun automatic injection device for painting the body according to an exemplary embodiment of the present invention It is a perspective view which shows the state before installation of the applied clear paint spray gun unit.

Referring to the drawings, the clear gun automatic injector 100 according to an exemplary embodiment of the present invention is a clear to protect the color of the vehicle body on the top coat base coating of the vehicle body, improve the appearance and protect the coating film from the outside It is applied to the clearing process of the vehicle body painting line for spraying paint onto the vehicle body.

The automatic clear gun injector 100 is a clear paint injector when the clear paint injector is not used for a long time, a branch pipe connected to the clear paint booth in the main pipe, a clear paint supply hose connected to the branch pipe, and various fittings or paint injectors. In order to prevent the solidification, the clear paint injector is made of a structure that can automatically spray the clear paint periodically through the paint injector.

To this end, the automatic clear gun automatic spraying device 100 according to the present embodiment basically includes a clear paint spray gun unit 10 (hereinafter referred to as a "paint spray gun unit" for convenience) and a hanger unit 20. .

In this embodiment, the paint spray gun unit 10 includes a spray body 11 for spraying clear paint as compressed air, and a trigger 16 rotatably mounted to the spray body 11.

The spray body 11 is connected to a clear paint supply unit (not shown) through a clear paint supply hose 12, and is configured to be connected to a compressed air supply unit (not shown) through an air supply hose 13.

The spray body 11 is a gripping portion 14 to be held by the operator, and the injection nozzle portion 15 formed integrally with the gripping portion 14 and disposed in a direction perpendicular to the gripping portion 14. Is done.

In this case, the air supply hose 13 is connected to the holding part 14, and the clear paint supply hose 12 is connected to the injection nozzle part 15.

Here, the spray nozzle unit 15 is a clear paint supplied from the clear paint supply unit (not shown) through the clear paint supply hose 12 from the compressed air supply unit (not shown) through the air supply hose (13) It serves to inject as compressed air supplied.

And the front end portion of the spray body 11 is formed with a ring-shaped mounting projection 19 for mounting the spray body 11 to the hanger unit 20 which will be described later.

The trigger 16 is an operation lever for ejecting a clear paint as compressed air through the spray nozzle unit 15, and rotates to the spray nozzle unit 15 side in correspondence with the grip unit 14 of the spray body 11. It is configured as possible, and has a structure that is elastically biased through an elastic member such as a torsion spring (not shown).

The paint spray gun unit 10 formed as the spray body 11 and the trigger 16 is made of a paint spray gun of a known technique widely used in the art, and thus, a detailed description of the configuration will be omitted.

In the present embodiment, the hanger unit 20 is provided with a hanger body 21 for substantially mounting the spray body 11 of the paint spray gun unit 10.

The hanger body 21 is installed to be fixed to the wall inside the booth, the front is open, the first wall 22 is formed on the rear, the second wall 23 facing each other on the side thereof is formed It is made of a structure.

In this case, a pair of mounting bars 24 for mounting the spray body 11 of the paint spray gun unit 10 are connected to the second wall 23 facing each other.

In the hanger body 21, a support hole 25 for supporting the spray body 11 is formed on the bottom surface thereof.

The support hole 25 is formed as a through hole 26 into which the spray nozzle part 15 of the spray body 11 is fitted, and the through hole 26 has a clear paint supply hose 12 of the spray body 11. ) Is provided with a support groove 27 for supporting.

Here, the through hole 26 supports the spray nozzle unit 15 of the spray body 11 and at the same time, the clear paint sprayed through the spray nozzle unit 15 with the spray nozzle unit 15 fitted therein. To discharge to the bottom of the booth.

And the lower surface of the hanger body 21 is formed with a discharge pipe 28 which is in communication with the through hole 26 of the support hole 25, the discharge pipe 28 is the injection nozzle portion of the spray body (11) 15 to form a discharge passage for discharging the clear paint sprayed to the through hole 26 to the bottom of the booth.

On one side of the hanger body 21 as described above, the mounting portion 31 is integrally formed, and the mounting portion 13 is equipped with a first working cylinder 32 made of a pneumatic cylinder.

The first working cylinder 32 has a cylinder body 33 supported by the mounting portion 31. The cylinder body 33 is connected to the compressed air supply unit (not shown) through the first connecting line 34 in the form of a pipe.

In addition, the cylinder body 33 is provided with an operating rod 35 which is advanced back and forth under the trigger 16 of the paint spray gun unit 10 in accordance with the presence or absence of pneumatic supply. At this time, the working rod 35 passes forward and backward through the second wall 23 of the hanger body 21.

In addition, the first connection line 34 has a flow path of the first connection line 34 in accordance with an electrical signal input from a controller (not shown) to supply or discharge the pneumatic pressure of the first working cylinder 32. A first solenoid valve 41 for selectively opening and closing the is provided.

Here, the first solenoid valve 41 is controlled by a controller (not shown) and is configured as a structure capable of opening or closing the flow path of the first connection line 34 for a predetermined time.

In addition, the mounting portion 31 of the hanger body 21 has a second working cylinder 51 which is located below the cylinder body 33 of the first working cylinder 32 and integrally connected to the cylinder body 33. Is mounted.

The second working cylinder 51 is formed as a pneumatic cylinder and has a piston 53 which is integrally connected with the cylinder body 33 of the first working cylinder 32. At this time, the piston 53 is moved up and down in accordance with the presence or absence of pneumatic pressure.

The second working cylinder 51 is connected to the compressed air supply unit (not shown) through the second connecting line 55 in the form of a pipe.

In addition, the flow path of the second connection line 55 is connected to the second connection line 55 according to an electrical signal input from a controller (not shown) to supply or discharge the pneumatic pressure of the second working cylinder 51. A second solenoid valve 57 for selectively opening and closing is installed.

Here, the second solenoid valve 57 is configured by a controller (not shown) to open or close the flow path of the second connection line 55 for a predetermined time.

Therefore, the second working cylinder 51 can raise and lower the cylinder body 33 of the first working cylinder 32 through the piston 53 in accordance with the presence or absence of pneumatic supply.

In this way, as the cylinder body 33 of the first operating cylinder 32 is elevated in the vertical direction through the piston 53 of the second operating cylinder 51, the cylinder body 33 and the first solenoid valve The first connecting line 34 connecting the 41 is rotatably supported with respect to the first solenoid valve 41.

And the cylinder body 33 of the first operating cylinder 32 is the second in the state that the operating rod 35 of the first operating cylinder 32 is advanced to the lower side of the trigger 16 of the paint spray gun unit 10. In the case of lifting up and down by the operating cylinder 51, the guide hole 29 is formed long in the vertical direction in the second wall 23 of the hanger body 21 to guide the vertical movement of the operating rod 35. It is.

Therefore, according to the vehicle body clearing gun automatic spray device 100 according to an exemplary embodiment of the present invention configured as described above, when the paint spray gun unit 10 is not in use, the spray of the paint spray gun unit 10 The body 11 is mounted on the hanger body 21 of the hanger unit 20.

That is, the spray nozzle part 15 of the spray body 11 is inserted into the through-hole 26 of the support hole 25 and at the same time, the bar 24 is provided with the mounting protrusion 19 on the holding part 14 side. ) To mount the spray body (11) on the hanger body (21). At this time, the actuating rod 35 of the first actuating cylinder 32 is in the reversed state as in FIG. 3A.

In this state, when a predetermined time elapses, the controller (not shown) applies an electrical control signal to the first solenoid valve 41 to open the flow path of the first connection line 34.

Then, as the pneumatic pressure is supplied to the first working cylinder 32 through the first connecting line 34, the working rod 35 of the first working cylinder 32, as shown in Figure 3b, the second wall 23 In the state passing through the guide hole 29 of the), it is advanced to the lower side of the trigger 16 of the spray body (11).

At the same time, the controller (not shown) applies an electrical control signal to the second solenoid valve 57 to open the flow path of the second connection line 55.

Then, as pneumatic pressure is supplied to the second working cylinder 51 through the second connection line 55, as shown in FIG. 3c, the piston 53 of the second working cylinder 51 is raised by pneumatic pressure. Thus, the cylinder body 33 of the first working cylinder 32 is raised in an upward direction by the piston 53.

As described above, the cylinder body 33 of the first working cylinder 32 is lifted by the piston 53 of the second working cylinder 51, so that the working rod 35 of the first working cylinder 32 is raised. Lifts the trigger 16 of the spray body 11.

As a result, the clear paint supplied from the clear paint supply unit (not shown) through the clear paint supply hose 12 is sprayed by the compressed air supplied from the compressed air supply unit (not shown) through the air supply hose 13. It is injected through the injection nozzle part 15 of 11).

In this way, the clear paint sprayed through the spray nozzle unit 15 passes through the through hole 26 of the support hole 25 in which the spray nozzle unit 15 is inserted, and is discharged to the bottom of the booth through the discharge pipe 28.

After spraying the clear paint for a predetermined time through the spray body 10 as described above, the controller (not shown) applies an electrical control signal to the second solenoid valve 57 of the second connection line 55 Close the flow path.

Then, when the air pressure inside the second working cylinder 51 is discharged to the outside, the piston 53 of the second working cylinder 51 is lowered, and thus the cylinder body of the first working cylinder 32 ( 33) is lowered downward.

During this process, the controller (not shown) applies an electrical control signal to the first solenoid valve 41 to close the flow path of the first connection line 34.

Then, when the pneumatic pressure inside the first working cylinder 32 is discharged to the outside, the working rod 35 of the first working cylinder 32 is returned to its original position, and thus the spray body 11 The trigger 16 will return to its original position. Therefore, the paint spray gun unit 10 no longer sprays the clear paint.

Thus, in the present embodiment, when the paint spray gun unit 10 is not used for a long time, by spraying the clear paint periodically through the paint spray gun unit 10 as a repetitive action as described above, the paper pipe or clear paint supply It is possible to prevent the clear paint stagnant inside the hose or the paint spray gun unit 10 from hardening.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to the scope of the invention.

Since these drawings are for reference in describing exemplary embodiments of the present invention, the technical idea of the present invention should not be construed as being limited to the accompanying drawings.

1 is a perspective view showing the overall configuration of a clear gun automatic injector for painting the body according to an exemplary embodiment of the present invention.

FIG. 2 is a perspective view illustrating a state before mounting of a clear paint spray gun unit applied to a clear gun automatic spray device for painting a vehicle according to an exemplary embodiment of the present invention. FIG.

3A to 3C are operation state diagrams for explaining the operation of the auto clear spray device for body coating according to an exemplary embodiment of the present invention.

Claims (6)

A paint spray gun unit having a gripping portion and a spray nozzle portion, the spray body for injecting clear paint as compressed air through the spray nozzle portion, and a trigger rotatably mounted on the spray nozzle portion side corresponding to the gripping portion; At least one mounting bar for mounting the spray body is provided, and a hanger body having a support hole into which the spray nozzle part of the spray body is fitted is provided on the bottom surface to spray the clear paint sprayed through the spray nozzle part. Hanger unit for discharging to the bottom of the booth through the support hole; A first working cylinder mounted to a mounting part formed at one side of the hanger body, and having a working rod forward and backward toward the trigger of the paint spray gun unit according to whether or not the working pressure is supplied; A second working cylinder installed to be connected to the first working cylinder to move the first working cylinder upward and downward in accordance with the presence or absence of an operating pressure; And A first solenoid valve configured to vary a flow path according to an electrical signal input from a controller to supply or discharge an operating pressure of the first working cylinder; And A second solenoid valve for varying a flow path in accordance with an electrical signal input from the controller to supply or discharge the working pressure of the second working cylinder; Clear gun automatic injector for car body composition comprising a. According to claim 1, The hanger body has an open front, a first wall is formed at the rear, and a second wall facing each other on the side thereof is formed, The mounting bar is a clear gun automatic injector for painting the body is installed so that both ends thereof are connected to the second wall, respectively. The method of claim 2, And a guide hole for guiding forward and backward and vertical movement of the first operating rod on the second sidewall of the side corresponding to the mounting portion. According to claim 1, The connection line connecting the first operation cylinder and the first solenoid valve is rotatably connected to the first solenoid valve in response to the lifting operation of the first operation cylinder. According to claim 1, Clearing gun automatic spraying device for body painting is provided with a clear paint discharge pipe communicating with the support hole on the bottom of the hanger body. According to claim 1, Clear gun automatic injector for painting the body is formed in the front end of the gripping portion of the spray body to form a ring-shaped mounting projection corresponding to the mounting bar.

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