JP7150576B2 - PAINT FILLING UNIT AND PAINT FILLING APPARATUS INCLUDING THE SAME - Google Patents

Description

TECHNICAL FIELD The present invention relates to a paint filling unit and a paint filling apparatus equipped with the same, and more particularly, when filling paint into a spray gun integrally equipped with a paint supply means, it is possible to eliminate complicated work. The present invention relates to a paint filling unit that enables easy filling and a paint filling apparatus having the same.

Conventionally, in a coating apparatus, a spray gun for injecting paint onto an object to be coated (hereinafter referred to as a "workpiece") and paint supply means for supplying paint to the spray gun are separate and independent. The paint is supplied from the paint supply means to the spray gun through the paint hose, and the supplied paint is sprayed from the spray gun toward the workpiece.

However, when such a method is adopted, the spray gun and paint hose must be washed each time the paint color is changed, which is troublesome and leads to a decrease in work efficiency. It was closed. In addition, when cleaning the spray gun and paint hose each time the paint color is changed, it is necessary to push out the remaining paint and throw it away. was also connected. In addition, when changing colors, it is necessary to clean the spray gun, paint hose, and pump. Especially when using a diaphragm pump as the pump, the large capacity of the diaphragm pump increases the waste of paint. It was gone.

For this reason, the present applicant has in the past developed an invention (hereinafter referred to as "syringe gun") in which a spray gun is integrally provided at the tip of a syringe as paint supply means in order to solve the above-mentioned problems. Proposed.

That is, FIG. 20 is a partial cross-sectional view for explaining the syringe gun. In the figure, a syringe gun 71 has a paint discharge port 72 at its tip and an O-ring 82 as a sealing member on its outer periphery. and a head portion 75 as a spray gun formed integrally with the syringe portion 73 at the tip of the syringe portion 73. The head portion 75 is provided with an atomizing air supply path 76 and a pattern air supply path 77 which are open near the paint discharge port 72 .

When the syringe gun 71 is used for coating, a piston rod 78 is connected to the piston 74, a movable plate 79 is connected to the piston rod 78, a screw 80 is screwed to the movable plate 79, and a screw is screwed. 80 is connected to a motor 81 , and in this state, the motor 81 is rotated forward or backward, and air is supplied to the atomization air supply path 76 and the pattern air supply path 77 .

Then, the movable plate 79 advances along the screw thread 80, the piston 74 advances via the piston rod 78, and the paint in the syringe portion 73 is discharged to the head portion 75, and the discharged paint is It is atomized by the air supplied from the atomizing air supply path 76, and molded into an arbitrary pattern by the air supplied from the pattern air supply path 77, and is jetted toward the work.

In this way, in the syringe gun described above, the tip of the syringe for supplying the paint is integrally formed with the head as a spray gun for discharging the paint. Since the entire syringe gun is to be replaced in , there is no need to wash the spray gun when replacing the paint, and therefore it is possible to improve work efficiency, and thinner etc. required for cleaning cleaning solvent becomes unnecessary, and it is possible to improve the economic efficiency.

However, in the syringe gun described above, since the piston is advanced within the syringe and the paint in the syringe is discharged to the head, an O-ring is provided around the piston as a sealing material to prevent paint leakage. However, since the O-ring slides against the inner wall of the syringe when the piston moves, the O-ring wears quickly, making it difficult to completely seal the gap between the piston and the inner wall of the syringe.

Further, as described above, the syringe gun described above requires a movable plate 79, a screw screw 80, and a motor 81 as a driving system for advancing the piston and the piston. Since the motor 81 is structurally heavy, it is necessary to reduce the weight of the end effector when attaching the syringe gun to the arm of the painting robot.

Furthermore, as the piston diameter increases, the frictional resistance increases when the piston 74 moves within the syringe portion 73. In this case, it is necessary to increase the strength of the drive system, resulting in increased weight. It can be pointed out that there is a problem of fading.

In this respect, conventionally, a paint bag filled with paint is housed in a container, a working fluid is supplied into the container, and pressure is applied to the paint bag by the working fluid, thereby causing the paint in the paint bag to to the spray gun side has been proposed, and by using this paint cartridge, it is possible to completely prevent paint leakage.

Further, in the past, the applicant of the present invention has integrated a head portion as a spray gun on the tip side of a syringe portion provided with paint inside, and the syringe portion consists of a syringe body and a paint By supplying hydraulic fluid into the syringe body, the paint pouch is compressed, thereby supplying the paint in the paint pouch from the syringe part to the head part, and then from the paint injection port of the head part. We proposed an invention (hereinafter referred to as a "pouch gun") that discharges.

According to this pouch gun, the inside of the syringe can be completely sealed, and the piston and it can be moved forward, unlike the conventional method in which the paint in the syringe is discharged by the forward movement of the piston in the syringe. It is possible to achieve weight reduction because a drive system for the motor is not required.

Japanese Patent No. 4398662 Japanese Patent No. 6158073 JP 2008-212857 A Japanese Patent Application Laid-Open No. 2007-319728 JP-A-2007-21452 Japanese Patent Application Laid-Open No. 2006-347606 JP 2005-296750 A

By the way, in the above-mentioned pouch gun, after the paint in the paint pouch has been used up, the inside of the paint pouch can be refilled with new paint. Then, as a method thereof, the working fluid is filled in the syringe body, the tip side of the paint supply hose whose base end side is arranged in the paint tank is connected to the paint injection port of the head part, and the hydraulic fluid in the syringe body is is removed from the syringe body to create a negative pressure inside the syringe body, thereby causing the paint in the paint tank to flow into the paint pouch via the head.

For this reason, the above-mentioned pouch gun has a hydraulic fluid supply hose for supplying hydraulic fluid to the pouch gun and a hydraulic fluid discharge hose for discharging the hydraulic fluid in the syringe body from the syringe body each time the paint is filled. Furthermore, the paint supply hose must be connected, and after the filling is completed, the connection must be released, which may pose a problem of complicating the work.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a spray gun integrally provided with a paint supply means to facilitate the filling operation of the paint so that the filling operation can be performed efficiently.

The paint filling unit of the present invention is
A paint receiving port, a paint supply path having a paint injection port for injecting the paint received from the paint receiving port toward a workpiece, a needle that can open and close the paint injection port by advancing and retreating, and the needle moving back and forth by air. and an air supply path for the needle for spraying, the tip of which is opened at an arbitrary point around the paint injection port, and by supplying air around the paint injection port, the paint discharged from the paint injection port is atomized. and an atomizing air supply path for spraying the atomized paint to the tip side in an arbitrary pattern;
a manifold having a paint discharge port communicating with a paint receiving port; a casing connected to the manifold; a paint discharge port housed in the casing and connected to the paint discharge port; a bag-shaped paint pouch to be filled, the manifold having a hydraulic fluid supply port for injecting the hydraulic fluid supplied from the hydraulic fluid supply means into the casing; and the hydraulic fluid injected into the casing. to the hydraulic fluid supply means, a needle air supply port for supplying the air supplied from the air supply means to the needle air supply path of the spray gun body, and the air supply means and an atomizing air supply port for supplying the sprayed air to the atomizing air supply path of the spray gun body, and by supplying the working fluid into the casing through the working fluid supply port, the paint pouch is formed. A paint for filling a paint pouch in a spray gun integrally comprising a paint supply means that is pressurized to discharge the paint in the paint pouch from the paint discharge part and supply the paint to the paint receiving port. a filling unit,
a main body supporting the spray gun, an operating manifold attached to the main body, and a paint filling manifold attached to the main body,
The working manifold is
a hydraulic fluid supply joint having a base end connected to the hydraulic fluid supply means and having the other end connected to the hydraulic fluid supply port;
a hydraulic fluid discharge joint having a base end connected to the hydraulic fluid supply means and having the other end connected to the hydraulic fluid discharge port;
a needle air supply joint connected to the air supply means on the base end side and connected to the needle air supply port on the other end side,
The paint filling manifold is
A paint filling joint having a base end connected to a paint container and having the other end connected to a paint injection port,
Connect the hydraulic fluid supply joint to the hydraulic fluid supply port, connect the hydraulic fluid discharge joint to the hydraulic fluid discharge port, connect the needle air supply joint to the needle air supply port, and connect the paint filling joint to the paint injection port. Then, with the casing filled with hydraulic fluid, the hydraulic fluid supplied into the casing is returned to the hydraulic fluid supply means side to create a negative pressure in the casing, thereby removing the paint in the paint container from the spray gun. It is characterized in that the paint is filled by flowing into the paint pouch through the main body.

The paint filling device of the present invention equipped with this paint filling unit comprises a body frame, a paint filling unit connected to the body frame so as to be vertically rotatable, and a paint filling unit connected to the body frame. and a container case to which the paint container can be attached, which is connected above the point so as to be freely rotatable in the vertical direction.

In the paint filling unit of the present invention, an operating manifold and a paint filling manifold are attached to the main body that supports the spray gun. The actuating manifold includes a hydraulic fluid supply joint connected to the hydraulic fluid supply means at the proximal end and connected to the hydraulic fluid supply port of the spray gun at the other end, and connected to the hydraulic fluid supply means at the proximal end. The hydraulic fluid discharge joint to which the hydraulic fluid discharge port of the spray gun is connected is connected to the other end, and the base end is connected to the air supply means and the other end is connected to the needle air supply port of the spray gun. and an air supply joint for the needle. Also, the paint filling manifold has a paint filling joint to which the base end is connected to the paint container and the other end is connected to the paint injection port of the spray gun.

Therefore, when filling the pouch gun with paint, it is sufficient to simply attach the spray gun to the paint filling unit. There is no need to connect the hydraulic fluid discharge hose for discharging the hydraulic fluid supplied to the pouch gun or the paint supply hose to the pouch gun, and it is not necessary to disconnect the connection after filling, so the paint filling work is easy and the paint filling work can be done efficiently. At this time, in the paint filling unit of the present invention, when the paint filling joint is connected to the spray gun, the paint filling joint is connected to the paint injection port, and there is no need to remove the cap at the tip of the spray gun. Furthermore, it is possible to efficiently perform paint filling work.

Further, in the paint filling apparatus of the present invention, the container case to which the paint container can be mounted is rotatably mounted above the body frame to which the paint filling unit is rotatably mounted. By connecting the units with a paint supply hose, the paint can be dropped by its own weight, so it is possible to fill the spray gun with the paint more effectively.

At this time, in the paint filling device of the present invention, since the paint filling unit is rotatably mounted, the paint pouch side of the spray gun can be turned downward, thereby allowing the paint to be filled more efficiently. is possible.

Further, in the paint filling device of the present invention, since the container case is rotatable, the paint in the container case can be agitated by rotating the container case, and the pearls and metallic particles contained in the paint can be stirred. can be effectively prevented from settling on the bottom of the container.

Furthermore, in the paint filling unit of the present invention, when the spray gun is on standby with the spray gun attached, the hydraulic fluid supplied into the casing is returned to the hydraulic fluid supply means side to create a negative pressure in the casing and the paint. The inside of the paint pouch is filled by flowing the paint in the container through the main body of the spray gun into the paint pouch, and by supplying the hydraulic fluid into the casing while the paint pouch is filled with paint. Since the paint can be returned to the paint container, by repeating this, it is also possible to prevent precipitation of pearls and metallics contained in the paint in the paint pouch.

1 is a perspective view of an embodiment of a paint filling unit of the present invention; FIG. 1 is a side view of an embodiment of a paint filling unit of the present invention; FIG. FIG. 4 is a diagram for explaining an operating manifold in an embodiment of the paint filling unit of the present invention; FIG. 4 is a diagram for explaining an operating manifold in an embodiment of the paint filling unit of the present invention; 1 is a perspective view showing a state in which a spray gun is supported in an embodiment of a paint filling unit of the present invention; FIG. Fig. 2 is a side view showing a state in which a spray gun is supported in the embodiment of the paint filling unit of the present invention; 1 is a perspective view showing a state in which a spray gun is connected to an embodiment of a paint filling unit of the present invention; FIG. FIG. 4 is a side view showing a state in which a spray gun is connected to the embodiment of the paint filling unit of the present invention; 1 is a side view of an embodiment of a paint filling device of the present invention; FIG. 1 is a plan view of an embodiment of a paint filling device of the present invention; FIG. 1 is a side view of an embodiment of a paint filling device of the present invention, showing a state in which a spray gun and a paint container are attached; FIG. 1 is a side view of an embodiment of a paint filling device of the present invention, showing a spray gun being filled with paint; FIG. 1 is a side view of an embodiment of the paint filling device of the present invention, showing the paint container in a rotated state; FIG. 1 is a perspective view for explaining a spray gun to be filled by an embodiment of a paint filling unit of the present invention; FIG. 1 is a perspective view for explaining a spray gun to be filled by an embodiment of a paint filling unit of the present invention; FIG. FIG. 2 is a diagram for explaining the structure of a spray gun to be filled by the embodiment of the paint filling unit of the present invention; FIG. 3 is a cross-sectional view for explaining the structure of the spray gun main body in the spray gun to be filled by the embodiment of the paint filling unit of the present invention; 1 is a perspective view for explaining a spray gun to be filled by an embodiment of a paint filling unit of the present invention, showing a state in which a casing is removed; FIG. 1 is a perspective view for explaining a spray gun to be filled by an embodiment of a paint filling unit of the present invention, showing a state in which a casing is removed; FIG. It is a figure for demonstrating the conventional syringe gun.

The paint filling unit of the present invention is a paint filling unit for filling paint into a spray gun integrally provided with a paint supply means. That is, the spray gun to which the present invention is applied is a spray gun in which a spray gun main body and a paint supplying means for supplying paint to the spray gun main body are integrated.

The spray gun main body has a paint receiving port for receiving the paint supplied from the paint supplying means, and a paint supply path provided with a paint injection port for injecting the paint received from the paint receiving port toward the workpiece. ing.

Further, the spray gun main body has a needle that can open and close the paint injection port by advancing and retreating, and an air supply path for the needle for advancing and retreating the needle with air.

Furthermore, the spray gun body has an atomizing air supply path, and the tip of this atomizing air supply path is opened at an arbitrary location around the paint injection port to supply air around the paint injection port. , the paint ejected from the paint injection port is atomized and the atomized paint is sprayed to the tip side in an arbitrary pattern.

On the other hand, the paint supply means has a manifold and a casing connected to the manifold, and the manifold has a paint discharge section communicating with the paint receiving port of the spray gun body. Further, a paint pouch is housed in the casing, and this paint pouch has a paint discharge port connected to the paint discharge part of the manifold, and has a bag-like shape filled with paint. has been

Further, the manifold has a hydraulic fluid supply port for injecting the hydraulic fluid supplied from the hydraulic fluid supply means into the casing, and a hydraulic fluid discharge port for returning the hydraulic fluid injected into the casing to the hydraulic fluid supply means. a needle air supply port for supplying the needle air supplied from the air supply means to the needle air supply passage of the spray gun main body, and the air supplied from the air supply means to the spray gun main body spray air supply It is equipped with an atomizing air supply port for supplying to the passage, and by supplying the working fluid into the casing through the working fluid supply port, the paint pouch is pressed, and the paint in the paint pouch is The paint is discharged from the paint discharge portion and supplied to the main body of the spray gun through the paint receiving port.

The paint filling unit of the present invention is a paint filling unit for filling paint into the paint pouch of the spray gun described above. That is, the paint filling unit of the present invention has a main body that supports the spray gun, and an operating manifold and a paint filling manifold mounted on the main body. A hydraulic fluid supply joint connected to the fluid supply means and connected to the hydraulic fluid supply port of the spray gun on the other end side, and a hydraulic fluid supply joint connected to the hydraulic fluid supply means on the base end side and the hydraulic fluid drain of the spray gun on the other end side. It comprises a hydraulic fluid discharge joint to which an outlet is connected, and an air supply joint for needles, which is connected to air supply means at its base end and to an air supply port for needles at the other end.

Also, the paint filling manifold has a paint filling joint to which the base end is connected to the paint container and the other end is connected to the paint injection port of the spray gun.

The hydraulic fluid supply joint is connected to the hydraulic fluid supply port of the spray gun, the hydraulic fluid discharge joint is connected to the hydraulic fluid discharge port of the spray gun, and the needle air supply joint is connected to the needle air supply port of the spray gun. , the paint filling joint is connected to the paint injection port of the spray gun, and in a state in which the casing is filled with hydraulic fluid, the hydraulic fluid supplied into the casing is returned to the hydraulic fluid supply means side, thereby filling the casing with A negative pressure is applied to the paint container, thereby allowing the paint in the paint container to flow into the paint pouch through the main body of the spray gun, thereby filling the paint with the paint.

Here, the operating manifold is attached to the main body so as to be movable back and forth, and the operating manifold is moved back and forth while the spray gun is supported on the main body, thereby connecting the hydraulic fluid supply port of the spray gun and the hydraulic fluid supply joint. Disconnection, connection or disconnection between the spray gun hydraulic fluid discharge port and the hydraulic fluid discharge joint, and connection or disconnection between the spray gun needle air supply port and the needle air joint may be provided. This facilitates connection with the spray gun.

In addition, the paint filling manifold is attached to the main body so that it can move back and forth, and the paint filling manifold is moved back and forth while the spray gun is supported by the main body, so that the paint injection port of the spray gun and the paint filling joint can be connected or It may be possible to release the connection, which also facilitates connection with the spray gun.

Furthermore, the paint filling manifold may be detachably attached to the main body, so that cleaning is not required by exchanging the paint filling manifold when changing colors.

On the other hand, the paint filling device of the present invention equipped with this paint filling unit has a body frame, and the paint filling unit is connected to the body frame so as to be vertically rotatable. A container case, to which a paint container can be attached, is connected to the main body frame above the portion where the paint filling unit is connected so as to be vertically rotatable.

Here, it is preferable to use a rotary air cylinder as the means for rotating the paint filling unit, and it is preferable to use an explosion-proof servo motor as the means for rotating the container case.

An embodiment of the paint filling unit of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of the paint filling unit of this embodiment, FIG. filling unit.

The paint filling unit of this embodiment has a main body. That is, in the figure, 2 is the body portion, and in this embodiment, the body portion 2 has a pair of side walls 201 arranged at intervals and a bottom portion 202 connecting the lower end portions of the side walls, A connecting shaft 203 is connected to each of the outer surfaces of the pair of side walls 201 so as to face outward in a direction orthogonal to the surfaces of the side walls 201 , that is, in the lateral direction of the main body 2 . Support plates 204 for supporting the spray guns are attached to the inner sides of the side walls 201, respectively. is protruded.

Next, in the figure, 3 is a manifold for operation. That is, an operating manifold 3 is attached to the main body 2, and the operating manifold 3 is connected to the tip of a movable shaft 4 passing through each of the support plates 204 in the front-rear direction. The movable shaft 4 is movable forward and backward with respect to the support plate 204. A movable plate 5 is connected to the base end side of the movable shaft 4, and the movable plate 5 is connected to an air cylinder 6. By actuating 6, the operating manifold 3 can be moved back and forth.

Here, FIG. 3 is a view showing the operating manifold 3 from the back side, and FIG. 4 is a view showing the operating manifold 3 from the left side. In the figure, 301 is a hydraulic fluid supply joint, 302 is a hydraulic fluid discharge joint, and 303 is a needle air supply joint. That is, the operating manifold 3 has a hydraulic fluid supply joint 301 for supplying hydraulic fluid to the spray gun and a hydraulic fluid discharge joint 302 for discharging the hydraulic fluid supplied to the spray gun. , a needle air supply joint 303 for supplying needle air for advancing and retracting the needle of the spray gun and for removing the supplied air.

The hydraulic fluid supply joint 301 is connected to the hydraulic fluid supply means through the hydraulic fluid supply pipe 304, the hydraulic fluid discharge joint 302 is connected to the hydraulic fluid supply means through the hydraulic fluid discharge pipe 305, and The needle air supply joint 303 is connected to an air supply means through a needle air supply pipe 306 .

In the present invention, the hydraulic fluid supply means connected to the hydraulic fluid supply pipe 304 and the hydraulic fluid discharge pipe 305 and the air supply means connected to the needle air supply pipe 306 are not particularly limited. Therefore, the hydraulic fluid supply means only needs to have a hydraulic fluid tank storing hydraulic fluid such as water and a pump for supplying the hydraulic fluid in the hydraulic fluid tank to the paint filling unit side. The means only needs to have a means capable of supplying compressed air such as a compressor and a means for removing the supplied air, and further has a control means for controlling these pumps, compressors and the like.

A syringe pump is preferably used as the pump in the hydraulic fluid supply means, which makes it possible to supply a constant amount of hydraulic fluid to the spray gun. Since the syringe pump is a well-known technology, detailed description will be omitted. , the piston has a piston rod connected to the proximal end of the syringe, and the piston is advanced while the syringe is filled with hydraulic fluid, so that the hydraulic fluid in the syringe is transferred to the hydraulic fluid in the hydraulic manifold 3. It is better to supply to the supply joint 301 .

The hydraulic fluid discharge joint 302 may also be connected to the hydraulic fluid tank via a hydraulic fluid discharge pipe 305, thereby allowing the hydraulic fluid discharged from the spray gun to be returned to the hydraulic fluid tank.

Next, in the figure, 7 is a paint filling manifold. That is, a paint filling manifold 7 is provided below the bottom portion 202 of the body portion 2, and the paint filling manifold 7 is connected to an air cylinder 8 mounted below the bottom portion 202. By the operation of 8, it is possible to advance and retreat in the front-rear direction.

In the figure, 701 is a paint filling joint for injecting paint into the spray gun, and 702 is connected to the other end of a paint hose whose one end is connected to a paint container to supply paint from the paint container. is supplied to the paint filling joint 701 via the paint filling manifold 7 .

In this embodiment, the paint filling manifold 7 is detachably attached to the main body. Therefore, when the color is changed, it can be handled by exchanging the paint filling manifold, which eliminates the need for cleaning and makes it possible to improve the efficiency of the color change work.

14 and 15 are perspective views showing a spray gun 11 in this embodiment, and FIG. 16 is a spray gun in this embodiment. 11 is a diagram for explaining the structure of 11. In this embodiment, the spray gun 11 has a spray gun main body and paint supply means for supplying paint to the spray gun main body. 14 and 15, 12 is the spray gun body, 13 is the paint supply means, and the spray gun body 12 is connected to the lower part of the paint supply means 13. In this embodiment, the spray gun body 12 and the paint supply The means 13 are integral.

First, the spray gun main body 12 will be described. , the paint supplied from the paint supply means 13 can be received and the received paint can be jetted.

That is, in the figure, 14 is a paint supply passage, and this paint supply passage 14 comprises a paint receiving port 14a for receiving the paint supplied from the paint supplying means 13, and a paint receiving port 14a for directing the paint received from the paint receiving port 14a to the workpiece. The paint receiving port 14a is opened on the side wall side of the spray gun body 12, and the paint injection port 14b is opened on the tip surface of the spray gun body 12. ing. The paint injection port 14b is connected to a paint filling joint 701 formed in the paint filling manifold 7 of the paint filling unit 1 when the spray gun 11 is filled with paint. A cap is attached to the tip of the spray gun, but in this embodiment, the paint filling joint 701 can be connected to the paint injection port without removing the cap.

Next, in FIG. 17, 15 is a needle for opening and closing the paint injection port 14b. By doing so, the paint injection port 14b is closed, and by retreating, the paint injection port 14b is opened.

Here, the method of advancing and retreating the needle will be described. In this embodiment, the needle 15 is advanced and retreated by air supplied to the air supply path 19 for the needle. That is, in this embodiment, the paint supply passage 14 extends from the paint injection port 14b to the rear side of the spray gun body 12 by an arbitrary distance, and then changes course toward the side wall of the spray gun body 12 to advance. , the side wall of the spray gun body 12 has a paint receiving opening 14a.

On the other hand, the needle 15 is arranged inside the spray gun main body 12 so as to pass through the central portion of the spray gun main body 12, the tip side is located in the paint supply passage 14, and the base end side is located in the spray gun main body. Inside 12, a piston 16 is fixed inside the spray gun main body 12 so as to be freely movable in the forward and rearward directions and protrude from the paint supply passage 14 outside the paint supply passage 14. As shown in FIG. The piston 16 is urged toward the tip of the spray gun body 12 by a spring 17, so that the needle 15 normally moves along with the piston 16 toward the tip of the spray gun body 12, and the tip of the needle 15 sprays paint. The mouth 14b is closed.

Next, inside the spray gun main body 12, an air chamber 18 is formed on the side opposite to the spring of the piston 16, and the base end side is opened at the side wall of the spray gun main body 12, and the tip side is the air chamber 18. A connected needle air supply path 19 is formed. A needle air conveying path (not shown) formed in the paint supply means 13 is connected to the base end side opening of the needle air supply path 19, and air is supplied from the paint supply means 13. As a result, air is supplied into the air chamber 18 through the needle operating air supply passage 19, and the piston 16 is pressed toward the base end side in the spray gun main body 12, thereby causing the needle 15 to move toward the spray gun. It moves to the base end side of the main body 12, and the closure of the paint injection port 14b by the tip of the needle 15 is released.

Therefore, in this embodiment, by supplying air to the air chamber 18 through the needle air supply passage 19 or removing the supplied air, the needle 15 can be operated to open and close the paint injection port 14b. It is possible. However, in the present invention, it is not always necessary to operate the needle 15 in the configuration described above, and any configuration may be used as long as the paint injection port 14b can be opened and closed by moving the needle 15 in the front-rear direction of the spray gun main body 12. may be

Next, in the figure, 20 and 21 are atomizing air supply paths for atomizing the paint discharged from the paint injection port 14b and for jetting the atomized paint to the tip side in an arbitrary pattern. In this embodiment, the atomizing air supply path is composed of an atomizing air supply path 20 and a pattern air supply path 21 .

First, the atomization air supply passage 20 will be described. 20 are formed. The tip of the atomizing air supply path 20 is opened at an arbitrary location around the paint injection port 14b, and the base end of the atomizing air supply path 20 is formed in the paint supply means 13. (not shown), and when air is supplied through an atomizing air conveying path formed in the paint supply means 13, the atomizing air flows around the paint injection port 14b through the atomizing air supply path 20. is supplied, making it possible to atomize the paint discharged from the paint injection port 14b.

Next, the pattern air supply path 21 will be described. In this embodiment, the spray gun main body 12 has a pattern air supply path 21 for changing the ejection pattern of the paint atomized by the atomizing air to an arbitrary pattern. formed. The pattern air supply path 21 has an opening 2101 outside the opening of the tip of the atomizing air supply path 20 at the tip, and is formed in the paint supply means 13 at the base. When air is supplied through the pattern air transport path (not shown) formed in the coating material supply means 13 , the atomization air supply path 20 passes through the pattern supply path 21 . Pattern air is supplied around the tip opening, making it possible to change the ejection pattern of the paint atomized by the atomizing air.

Next, the paint supply means 13 that constitutes the spray gun 11 together with the spray gun main body 12 will be described. is doing. The inside of the casing 24 is hermetically sealed, and a paint pouch 25 is accommodated therein.

Here, the manifold 23 will be described with reference to FIG. , to the paint receiving port 14a of the spray gun body 12 via a paint conveying path (not shown).

The manifold 23 also includes a hydraulic fluid supply portion 27 for supplying hydraulic fluid to the inside of the casing 24 and a hydraulic fluid discharge portion 28 (see FIG. 19) for discharging the hydraulic fluid supplied to the inside of the casing 24. equipped.

On the other hand, the paint pouch 25 has a bag-like shape, can be filled with paint, and has a paint discharge port 30 connected to the paint discharge part 26 . As a result, the paint in the paint pouch 25 can be supplied to the spray gun body 12 via the paint discharge section 26 , a paint conveying path (not shown), and the paint receiving port 14 a of the spray gun body 12 .

Here, the paint pouch 25 will be described. The paint pouch 25 of this embodiment is composed of a multi-layered film. It is supposed to return to its original size by filling it with paint.

18 and 19 are perspective views showing the spray gun 11 with the casing 24 removed. In the figures, 29 is a paint filling unit in which the hydraulic fluid supplied into the casing 24 is discharged from the casing 24 and This hydraulic fluid discharge pipe 29 is connected to the working fluid discharge portion 28 at its lower end and opens at the upper end portion within the casing 24 at its upper end.

A hydraulic fluid supply port 31 and a hydraulic fluid discharge port 32 are formed on the side surface of the manifold 23. The hydraulic fluid supply port 31 communicates with the hydraulic fluid supply portion 27, and the hydraulic fluid discharge port 32 It communicates with the hydraulic fluid discharge portion 28 . When filling paint, the hydraulic fluid supply port 31 is connected to the hydraulic fluid supply joint 301 in the paint filling unit 1, and the hydraulic fluid discharge port 32 is connected to the hydraulic fluid discharge joint 302 in the paint filling unit 1. We are planning to

With this configuration, when the paint pouch 25 is filled with paint, the hydraulic fluid cannot be discharged from the hydraulic fluid discharge portion 28, and the hydraulic fluid is discharged from the hydraulic fluid supply portion 27 through the hydraulic fluid supply port 31. As the hydraulic fluid is supplied into the casing 24, the paint pouch 25 is pressed by the hydraulic fluid. As a result, the paint pouch 25 is compressed by the hydraulic fluid and becomes smaller. The paint is supplied to the spray gun main body 12 from the paint receiving port 14a of the spray gun main body 12 via a conveying path (not shown).

On the other hand, when the hydraulic fluid is supplied from the hydraulic fluid supply portion 27 into the casing 24 in a state where the hydraulic fluid can be discharged from the hydraulic fluid discharge portion 29, after the inside of the casing 24 is filled with the working fluid, , the hydraulic fluid supplied into the casing 24 is discharged to the outside of the casing 24 through a paint discharge pipe 29, a hydraulic fluid discharge portion 28 and a hydraulic fluid discharge port 32 which are open at the upper end of the casing 24. As shown in FIG. As a result, the hydraulic fluid can be returned through the casing 24, and since the upper end of the hydraulic fluid discharge pipe is open at the upper end portion in the casing 24, the inside of the casing 24 can be returned in the process of returning the hydraulic fluid. It becomes possible to easily perform air bleeding and the like.

Further, on the side surface of the manifold 23, an atomizing air supply port 33a, a pattern air supply port 33b and a needle air supply port 33c are formed. These atomizing air supply port 33a, pattern air supply port 33b, and needle air supply port 33c are the atomization air transport path, the pattern air transport path, and the air transport path for operating the needle formed in the paint supply means 13. (none of which are shown), and as described above, these atomizing air conveying path, pattern air conveying path, and air conveying path for needle operation are formed in the spray gun main body 12, respectively. It communicates with the air supply path 20 , the pattern air supply path 21 , and the needle air supply path 19 .

Therefore, by injecting air from the atomizing air supply port 33a, the pattern air supply port 33b, and the needle air supply port 33c, respectively, the atomizing air supply path 20 and the pattern air supply path formed in the spray gun main body 12 are formed. 21. Air can be supplied to the needle air supply path 19, thereby operating the needle 15 to open the paint injection port 14b, and supplying the paint supplied to the paint supply path 14 in an arbitrary pattern. It is possible to atomize and inject from the paint injection port 14b.

15, 18 and 19, 34 is a locking groove used when connecting the spray gun 11 to the paint filling unit. That is, in this embodiment, the manifold 23 is formed with a locking groove 34 into which the locking projection 205 formed on the support plate 204 of the paint filling unit 1 is inserted. By inserting , the spray gun 11 can be supported in the paint filling unit 1 .

The needle air supply port 33c is connected to the needle air supply joint 303 formed in the operating manifold 3 of the paint filling unit 1 when the spray gun 11 is filled with paint.

Next, a method of filling paint into the spray gun 11 configured as described above will be described. A hydraulic fluid supply joint 39 is connected to the fluid supply port 31, a hydraulic fluid discharge joint 40 is connected to the hydraulic fluid discharge port 32, a needle air supply joint 41 is connected to the needle air supply port 33c, and a coating material is sprayed. A paint filling joint 701 is connected to the port 14b, and the spray gun 11 is connected to the paint filling unit 1.

In this embodiment, when the spray gun 11 is connected to the paint filling unit 1, first, the locking protrusion 205 formed on the support plate 204 of the paint filling unit 1 is inserted into the locking groove 34 of the spray gun 11. The spray gun 11 is placed on the paint filling unit 1 in the manner shown in FIG. 5 and 6 are views showing this placed state, FIG. 5 is a perspective view seen from the front, and FIG. 6 is a left side view. It will be installed in the filling unit.

In this state, the hydraulic fluid supply port 31 formed in the manifold 23 of the spray gun 11, the hydraulic fluid supply joint 301 provided in the operating manifold 3 of the coating material filling unit 1, and the operating fluid supply joint 301 formed in the manifold 23 of the spray gun 11. A liquid discharge port 32 and a hydraulic fluid discharge joint 302 provided on the operating manifold 3 of the paint filling unit 1, and an air supply port 33c for the needle formed in the manifold 23 of the spray gun 11 and the operating manifold 3 of the paint filling unit 1. The needle air supply joints 303 provided in 1 are opposed to each other, and the paint filling joint 701 provided in the paint injection port 14b of the spray gun 11 and the paint filling manifold 7 of the paint filling unit 1 is also They are in a facing positional relationship.

Next, the air cylinder 6 for moving the working manifold 3 is operated to retreat the working manifold 3, and the air cylinder 6 for moving the paint filling manifold 7 is operated to advance the working manifold 3. Let Then, the hydraulic fluid supply joint 301 is connected to the hydraulic fluid supply port 31, the hydraulic fluid discharge joint 302 is connected to the hydraulic fluid discharge port 32, the needle air supply joint 303 is connected to the needle air supply port 33c, and furthermore, , the paint filling joint 701 is connected to the paint injection port 14b of the spray gun 11, whereby the connection between the paint filling unit 1 and the spray gun 11 is completed, and the spray gun 11 can be filled with paint. 7 and 8 show this state, FIG. 7 is a perspective view seen from the front, and FIG. 8 shows the left side.

In this embodiment, when the paint filling manifold 7 is moved to connect the paint filling joint 701 to the paint injection port 14b of the spray gun 11, the paint injection port 14b is connected to the paint injection port 14b without removing the cap at the tip of the spray gun. By making it possible to connect the paint filling joint 701, it is possible to fill the paint without removing the cap of the spray gun, thereby achieving an improvement in work efficiency.

Next, in this state, if the casing 24 is not filled with hydraulic fluid, the hydraulic fluid can not be discharged from the hydraulic fluid discharge portion 28, and the hydraulic fluid supply joint 301 is connected to the hydraulic fluid supply port. 31 is supplied with hydraulic fluid, thereby filling the casing 24 with hydraulic fluid. At this time, if air enters the casing 24, the hydraulic fluid is supplied from the hydraulic fluid supply portion 27 into the casing 24 while allowing the hydraulic fluid to be discharged from the hydraulic fluid discharge portion 28. continue. Then, after the casing 24 is filled with the working fluid, the hydraulic fluid supplied to the casing 24 flows through the paint discharge pipe 29, the hydraulic fluid discharge portion 28, and the hydraulic fluid discharge pipe 29, which is open at the upper end of the casing 24. The hydraulic fluid is discharged to the outside of the casing 24 from the outlet 32 and can be returned via the casing 24. Since the upper end of the hydraulic fluid discharge pipe is open at the upper end portion inside the casing 24, the hydraulic fluid is returned. In the process, it becomes possible to easily remove air from the casing 24 and the like.

Next, the hydraulic fluid is supplied from the hydraulic fluid supply joint 301 to the hydraulic fluid supply port 31 when the casing 24 is filled with the hydraulic fluid or when the casing 24 is not filled with the hydraulic fluid. After filling the casing 24 with the working fluid, the working fluid in the casing 24 is returned to the side of the working fluid supply means, thereby making the inside of the casing 24 negative pressure. Then, since the inside of the casing 24 is under negative pressure, the paint in the paint container is sucked from the paint filling joint 701 to the paint injection port 14b side of the spray gun 11 through the paint hose one end of which is connected to the paint container. be. As a result, the sucked paint flows backward through the paint supply path 14 of the spray gun body and the paint conveying path (not shown) in the manifold, flows from the paint discharge part 26 into the paint discharge port 30, and is discharged into the paint pouch. 25 is filled.

When the pressure in the casing 24 is reduced by returning the hydraulic fluid in the casing 24 to the hydraulic fluid supply means, air is also supplied from the needle air supply joint 303 to the needle air supply port 33c. By doing so, air is supplied to the needle air supply passage 19 of the spray gun main body 12, the needle 15 is retracted, and the paint injection port 14b is opened.

Further, when the hydraulic fluid supplied into the casing 24 is returned to the hydraulic fluid supply means side, it is preferable to return the hydraulic fluid to the hydraulic fluid tank through the hydraulic fluid discharge pipe 305 using a pump or the like.

Thus, in the paint filling unit of this embodiment, the paint can be filled into the paint pouch of the spray gun only by connecting it to the spray gun. Since there is no need to connect a liquid discharge hose and a needle air hose to the spray gun, the paint filling operation is easy and efficient.

At this time, in the paint filling unit of this embodiment, the spray gun can be connected and disconnected only by advancing and retracting the operating manifold 3 and the paint filling manifold 7 while supporting the spray gun. Therefore, the paint filling operation is further facilitated.

Next, an embodiment of the paint filling apparatus of the present invention equipped with the paint filling unit 1 of the present invention configured as described above will be described with reference to the drawings. FIG. 10 is a plan view of the paint filling device 41 of this embodiment, and the paint filling device 41 of this embodiment has two paint filling units. This allows two spray guns to be filled with paint at the same time.

That is, the paint filling device 41 of this embodiment has three lower frames 43 on a mounting base 42, and upper frames 44 are provided on the upper rear sides of the lower frames 43 positioned at both ends. is provided, which constitutes the body frame. Each of the lower frames 43 is gate-shaped and includes a pair of vertical frame members 43a and horizontal frame members 43b connecting the upper ends of the vertical frame members 43a. , a vertical frame member 44a and a horizontal frame member 44b connecting the upper end of the vertical frame member 44a. The paint filling unit 1 is rotatably provided between the lower frames 43, and the container case 45 is rotatably provided between the upper frames 44. The container case 45 contains two paint containers. 46 can be accommodated.

Here, the mounting of the paint filling unit 1 will be described. In this embodiment, unit holding members 47 are mounted on the lower frames 43 located at both ends, and two units are mounted on the lower frame 43 located in the center. A unit motor 48 is mounted. One of the connecting shafts 203 is rotatably connected to the unit holding member 47, and the other of the connecting shafts 203 is connected to the unit motor 48. By driving the unit motor 48, the paint is It enables the filling unit 1 to rotate vertically. That is, in this embodiment, it is rotatable clockwise or counterclockwise when viewed from the side. In this embodiment, the unit motor 48 uses a rotary air cylinder.

Next, in the figure, 49 is a case holding member for holding the container case 45 rotatably. That is, in this embodiment, a case holding member 49 is provided on one side of the upper frame positioned at both ends, and a case motor 50 is attached to the other side of the upper frame positioned at both ends. On the other hand, the container case 45 has a box-shaped case body 45a in which the paint container 46 is accommodated, and rotating shafts 45b projecting outward from both sides of the case body 45a. One of the rotating shafts 45b is rotatably connected to the case holding member 49, and the other of the rotating shafts 45b is connected to the case motor 50, thereby driving the case motor 50. , the container case 45 is vertically rotatable, that is, clockwise or counterclockwise when viewed from the side.

Next, in FIG. 9, 52 is a fixing pin, and this fixing pin 52 is connected to an air cylinder (not shown) so that it can move back and forth. After housing the paint container 46 in the container case 45, the paint container 46 is pushed into the container case 45 side so that it is inserted into a pin hole (not shown) formed in the side wall of the paint container 46. 45 can be held.

In this embodiment, the case motor 50 is an explosion-proof servomotor, which is arranged such that its axis faces in the front-rear direction and is connected to the rotating shaft 45b via a gear 51. By changing the rotation direction by 90 degrees, the rotation shaft 45b can be rotated.

Next, a method of using the paint filling device 41 of this embodiment configured as described above will be described. The spray gun 11 is connected to the paint filling unit 1 by . At the same time, after housing the paint container 46 in the container case 45, the fixing pin 52 is pushed into the container case 45 side to hold the paint container 46 in the container case 45, and furthermore, the paint container 46 is connected to the paint container 46. The discharge part 53 and the paint receiving part 702 of the paint filling manifold 7 are connected by the paint hose 54 . FIG. 11 is a side view showing this state.

Next, the unit motor 48 is driven to rotate the paint filling unit 1 vertically by 180 degrees to turn the spray gun 11 upside down so that the spray gun main body 12 is positioned upward and the paint pouch 25 is positioned downward. make it In this state, as described above, the hydraulic fluid in the casing 24 is returned to the hydraulic fluid supply means side to make the inside of the casing 24 negative pressure, and the paint pouches 25 are filled with the paint. FIG. 12 is a side view showing the state in which the paint filling unit 1 is turned upside down.

On the other hand, when the spray gun 11 is not being filled with paint or when the spray gun 11 is on standby in a connected state, the case motor 50 is driven to rotate the container case 45 in the vertical direction. By continuing, it is possible to prevent pearls and metallics contained in the paint from settling on the bottom of the paint container 46 . FIG. 13 is a side view showing this state.

In addition, in the paint filling apparatus of this embodiment, when the spray gun is on standby with the spray gun attached, the working fluid supplied into the casing is returned to the side of the working fluid supply means to make the inside of the casing negative pressure and the paint is supplied. Repeatedly filling the paint pouch by letting the paint in the container flow into the paint pouch through the main body of the spray gun and returning the paint in the paint pouch to the paint container by supplying the working fluid into the casing. , it is also possible to prevent precipitation of pearls and metallics contained in the paint in the paint pouch.

As described above, in the paint filling apparatus of this embodiment, since the container case is mounted above the paint filling unit, the paint can be dropped by its own weight by connecting the paint container and the paint filling unit with the paint hose. As a result, it is possible to fill the spray gun with paint more effectively.

In addition, since the paint filling unit is rotatable, the paint can be efficiently filled by placing the paint pouch side of the spray gun downward.

Furthermore, since the container case is rotatable, the paint in the paint container can be agitated by rotating the container case in a state in which the paint container is accommodated. It is possible to effectively prevent sedimentation at the bottom of the water.

Furthermore, when the spray gun is put on standby, the hydraulic fluid supplied into the casing is returned to the hydraulic fluid supply means side to create a negative pressure inside the casing, thereby removing the paint in the paint container from the spray gun. The paint inside the paint pouch is repeatedly filled by flowing into the paint pouch through the main body, and the paint inside the paint pouch is returned to the paint container by supplying the hydraulic fluid into the casing. It is also possible to prevent precipitation of pearls and metallics contained in.

In the above description, the three lower frames 43 are provided and two paint filling units 1 are mounted, but the number of paint filling units 1 to be mounted is not limited, and is three or more. or one. Although the container case 45 can accommodate two paint containers corresponding to the number of the paint filling units 1, it is not necessary to accommodate two paint containers.

Furthermore, in the above description, the body frame is composed of the lower frame 43 and the upper frame, the paint filling unit 1 is rotatably provided between the lower frame 43, and the container case 45 is rotatably disposed between the upper frames 44. Although the description has been given of a case in which they are freely provided, it is not necessarily the case that the main body frame is composed of the lower frame 43 and the upper frame, the paint filling unit 1 is provided between the lower frames 43, and the container case 45 is provided between the upper frames 44. No need. In other words, the paint filling apparatus of the present invention may be provided with body frames, a paint filling unit between the body frames, and a container case 45 connected above the portion where the paint filling unit is connected. .

INDUSTRIAL APPLICABILITY The paint filling unit and the paint filling apparatus using the same of the present invention can be applied to general units and apparatuses for filling paint into a spray gun integrally provided with a paint supply means.

REFERENCE SIGNS LIST 1 Paint filling unit 2 Main body 201 Side wall 202 Bottom 203 Connecting shaft 204 Support plate 205 Locking projection 3 Manifold for operation 301 Hydraulic fluid supply joint 302 Hydraulic fluid discharge joint 303 Needle air supply joint 304 Hydraulic fluid supply pipe 305 Hydraulic fluid discharge Pipe 306 Needle air supply pipe 4 Movable shaft 5 Movable plate 6 Air cylinder 7 Paint filling manifold 701 Paint filling joint 702 Paint receiving portion 8 Air cylinder 11 Spray gun 12 Spray gun main body 13 Paint supply means 14 Paint supply passage 14a Paint receiving Port 14b Paint injection port 15 Needle 16 Piston 17 Spring 18 Air chamber 19 Needle air supply path 20 Atomization air supply path 21 Pattern air supply path 23 Manifold 24 Casing 25 Paint pouch 26 Paint discharge part 27 Hydraulic fluid supply part 28 Operation Liquid discharge part 29 Hydraulic fluid discharge pipe 30 Paint discharge port 31 Hydraulic fluid supply port 32 Hydraulic fluid discharge port 33a Atomization air supply port 33b Pattern air supply port 33c Needle air supply port 34 Locking groove 41 Paint filling device 42 Mounting base 43 Lower frame 44 Upper frame 45 Container case 45a Case main body 45b Rotating shaft 46 Paint container 47 Unit holding member 48 Unit motor 49 Case holding member 50 Case motor 51 Gear 52 Fixing pin 53 Paint discharge part 54 Paint hose

Claims (7)

A paint supply passage (14) having a paint receiving port (14a) and a paint injection port (14b) for injecting the paint received from the paint receiving port (14a) toward a work, and the paint injection port (14) is moved forward and backward. A needle (15) whose opening (14b) can be opened and closed, an air supply path (19) for the needle (19) for advancing and retracting the needle (15) by air, and an arbitrary point around the paint injection port (14b). By supplying air around the paint injection port (14b), the paint discharged from the paint injection port (14b) is atomized and the atomized paint is made into an arbitrary pattern and directed to the tip side. a spray gun body (12) comprising an atomizing air supply path (20, 21) for spraying;
A manifold (23) having a paint discharge part (26) communicating with the paint receiving port (14a), a casing (24) connected to the manifold (23), and housed in the casing (24) and a bag-like paint pouch (25) having a paint discharge port (30) connected to the paint discharge part (26) and filled with paint, and the manifold (23 ) includes a hydraulic fluid supply port (31) for injecting the hydraulic fluid supplied from the hydraulic fluid supply means into the casing (24), and a hydraulic fluid supply port (31) for supplying the hydraulic fluid injected into the casing (24) to the hydraulic fluid supply means. A hydraulic fluid discharge port (32) for returning, and a needle air supply port (33c) for supplying air supplied from the air supply means to the needle air supply path (19) of the spray gun body (12). and atomizing air supply ports (33a, 33b) for supplying air supplied from the air supply means to the atomizing air supply paths (20, 21) of the spray gun body (12), By supplying the working liquid into the casing (24) through the liquid supply port (31), the paint pouch (25) is pressed and the paint in the paint pouch (25) is discharged from the paint discharge section (26). ), and a paint supply means (13) capable of supplying the paint to the paint receiving port (14a) by discharging from the paint pouch (14a). and
A main body (2) supporting a spray gun (11), an operating manifold (3) attached to the main body (2), and a paint filling manifold (7) attached to the main body (2). and
The actuation manifold (3) is
a hydraulic fluid supply joint (301) having a proximal end connected to hydraulic fluid supply means and having the other end connected to the hydraulic fluid supply port (31);
a hydraulic fluid discharge joint (302) having a proximal end connected to hydraulic fluid supply means and having the other end connected to the hydraulic fluid discharge port (32);
a needle air supply joint (303) connected to the air supply means on the base end side and connected to the needle air supply port (33c) on the other end side,
The paint filling manifold (7)
a paint filling joint (701) having a base end connected to a paint container and having the other end connected to the paint injection port (14b);
A hydraulic fluid supply joint (301) is connected to the hydraulic fluid supply port (31), a hydraulic fluid discharge joint (302) is connected to the hydraulic fluid discharge port (32), and the needle air supply port (33c) is connected to the A needle air supply joint (303) is connected, a paint filling joint (701) is connected to the paint injection port (14b), and the casing (24) is filled with hydraulic fluid. The pressure inside the casing (24) is reduced by returning the hydraulic fluid supplied to the inside to the side of the hydraulic fluid supply means, thereby causing the paint in the paint container to flow through the spray gun body (12) to the paint container. A paint filling unit characterized in that the paint is filled by flowing into the pouch (25). The operating manifold (3) is attached to the main body (2) so as to be able to move back and forth. Connection or disconnection between the liquid supply joint (301) and the hydraulic fluid supply port (31), connection or disconnection between the hydraulic fluid discharge joint (302) and the hydraulic fluid discharge port (32), and needle air supply joint ( 303) and the needle air supply port (33c) can be connected or disconnected. The paint filling manifold (7) is attached to the main body (2) so that it can move back and forth. A paint filling unit according to claim 1 or 2, characterized in that the paint filling joint (701) and the paint injection port (14b) can be connected or disconnected. A paint filling unit according to any one of claims 1 to 3, characterized in that said paint filling manifold (7) is detachably attached to the main body (2). A paint filling device comprising the paint filling unit according to any one of claims 1 to 4,
body frame and
a paint filling unit (1) vertically rotatably connected to the body frame;
and a container case (45) to which a paint container can be attached, which is vertically rotatably connected above a portion of the body frame where the paint filling unit (1) is connected. A paint filling device characterized by: 6. Paint filling apparatus according to claim 5, characterized in that said paint filling unit (1) is rotatable by means of a rotary air cylinder. 7. The paint filling apparatus according to claim 5, wherein the container case (45) is rotatable by an explosion-proof servomotor.

Images