JP2573525Y2 - Cartridge type coating solution pumping device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cartridge type coating liquid pressure feeding device capable of changing coating liquids quickly and easily.

[0002]

2. Description of the Related Art Conventionally, there is a paint pressure feeding tank in which a coating liquid such as a paint and a release agent is stored in a tank, and the coating liquid is continuously supplied to a spray gun for coating at an appropriate pressure.

[0003] The paint feed tank generally comprises a pressure adjusting valve for adjusting the air pressure supplied from an air pressure source, and a pressure-resistant container-shaped tank for feeding the coating liquid stored by the air pressure. ing.

[0004]

However, such a paint pressurizing tank requires complete cleaning of the inside of the tank when changing the application liquid to be used, and requires a great deal of labor and time for changing colors. There was a problem.

The present invention has been made to solve the above-mentioned problem, and an object of the invention is to provide a cartridge type application liquid pressure feeding device which can quickly and easily change the application liquid. Is what you do.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above object, and has an air pressure inlet for accommodating a coating solution and pressurizing the coating solution, and an outlet for the coating solution. A coating liquid container having an airtight forming portion surrounding the outer periphery of the air pressure inlet and having a connecting portion for mounting, and a connecting portion of the coating liquid container having an air pressure inlet port and a coating liquid outlet port And a container coupling portion capable of coupling with the air pressure introducing port and a coating liquid receiving port communicable with the coating liquid discharge port, and are provided so as to be in close contact with the airtight forming portion. A container holder having a close member that forms a communication path for high-pressure air between the air pressure outlet and the air pressure inlet, and the coating liquid interposed between an air pressure source and an inlet port of the container holder. A coating liquid pumping pressure regulating valve the air pressure provided to be adjustable for pressurizing a cartridge type coating solution pumping apparatus characterized by comprising comprises a.

[0007]

The present invention is constructed as described above, and the connecting portion of the application liquid container is connected to the container connecting portion of the container holder and is integrally mounted on the apparatus.

At this time, the airtight forming portion of the coating liquid container is in close contact with the close member of the container holder, and high-pressure air isolated from the atmosphere is provided between the air pressure outlet of the container holder and the air pressure inlet of the coating liquid container. To establish a communication channel. The coating liquid outlet of the coating liquid container communicates with the coating liquid receiving port of the container holder.

Thus, the pressure of the air supplied from the air pressure source is adjusted by the coating liquid pressure-feeding pressure regulating valve, introduced into the coating liquid container from the air pressure inlet through the air pressure outlet, and stored in the coating liquid container. Pressurize the liquid. The pressurized coating liquid is discharged from the coating liquid outlet to the coating liquid receiving port,
It is fed to a spray gun or the like via a coating solution pressure feed port.

[0010]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a structural view of a cartridge type coating liquid pressure feeding device of this embodiment. FIG. 2 is a sectional view of a coating liquid container.
FIG. 3 is a sectional view of the container holder.

In FIG. 1, a cartridge type coating liquid pressure feeding device (hereinafter abbreviated as a coating liquid pressure feeding device 1) denoted by reference numeral 1 includes an air pressure introduction port 16, a coating liquid discharge port 20, a hermetic formation portion 13, a connecting portion. 14, a coating liquid container 10 provided with
Container coupling portion 33, close contact member 39, and air pressure outlet 3
7, a container holder 30 having a coating liquid receiving port 47, a coating liquid pressure-feeding pressure adjusting valve 50, and a blowing air pressure adjusting valve 60 for a spray gun 70.

In the embodiment, the coating liquid container 10 is formed in a cylindrical pressure-resistant container substantially similar to a so-called aerosol can, and a mounting cup 11 and a valve 18 are provided on the upper part thereof.

The mounting cup 11 has an annular airtight forming portion 13 formed on an outer peripheral side protrusion thereof, and a coupling portion 14 made of a male screw is threaded on the outer periphery of the central convex portion. An air pressure inlet 16 is provided at a predetermined position in the lower part of the inking cup 11 so as to penetrate therethrough.

The valve 18 includes a housing 25 fixed to the central convex portion of the mounting cup 11, a coating liquid outlet 20 opened at the upper end, and a stem 19 having a stem hole 21 opened laterally. The housing 2 includes a spring 23 for urging the stem 19 upward, and a packing 27 for always closing the stem hole 21 and opening the stem hole 21 when the stem 19 is pressed.
A dip tube 29 is provided between the inside 5 and the bottom inside the coating liquid container 10.

Therefore, when the stem 19 is depressed, the connection between the coating liquid outlet 20 and the bottom of the coating liquid container 10 is established. An appropriate amount of a desired coating solution is accommodated in the coating solution container 10, and when not in use, the air pressure inlet 16 is sealed by a stopper (not shown), and a removable lid (not shown) for covering the upper portion of the mounting cup 11. (Not shown). Further, a large number of coating liquid containers 10 are prepared according to the type of the coating liquid to be contained.

The container holder 30 has an annular groove 31 formed in the lower surface thereof for accommodating the airtight forming portion 13 of the mounting cup 11, and a coupling portion 1 in the center of the lower surface.
A container coupling portion 33 having a screw hole that can be screwed with 4 is screwed.

In the annular groove 31, a close contact member 39 made of an O-ring having the same diameter as that of the airtight forming portion 13 is provided. An air pressure outlet 37 is formed in the annular groove 31 inside the close contact member 39.
Is connected to an air pressure inlet port 35 provided on the side surface of the container holder 30.

Further, a coating liquid receiving port 47 is formed at the center of the bottom of the screw hole of the container connecting portion 33, and the coating liquid receiving port 47 is provided at a coating liquid outlet port 45 provided on the side of the container holder 30. Is communicated to. In addition, coating liquid receiving port 4
7 is provided with an annular stem packing 49 which is pressed down in close contact with the stem 19 of the coating liquid container 10 connected to the container connecting portion 33 and which communicates the coating liquid outlet 20 with the coating liquid receiving port 47. Has been established. And the container holder 30
The fixing screw hole 41 is fixed to the dustproof case 3 by the bolt 7.

The application liquid pressure adjusting valve 50 is a pressure reducing valve having an adjusting handle 51, and is provided with a pressure gauge 53. An inlet port of the coating liquid pressure adjusting valve 50 is connected to an air pressure supply port 55 via an air pressure pipe 56, and an outlet port is connected to an inlet port 35 of the container holder 30 via an air pressure pipe 57. I have. Also,
The outlet port 45 of the container holder is connected to a coating solution pressure sending port 59 via a solution sending pipe 58.

The blowing air pressure adjusting valve 60 is constituted by a pressure reducing valve having an adjusting handle 61, and is provided with a pressure gauge 63. An inlet port of the blowing air pressure regulating valve 60 is connected to an air pressure supply port 55 via an air pressure pipe 56, and an outlet port is connected to a blowing air pressure relay port 65 via an air pressure pipe 66. The application liquid pumping apparatus 1 is housed in an openable and closable dustproof case 3 having a transparent inspection window 5.

[0022] The coating liquid pressure feeding device 1 thus configured.
For example, as shown in FIG. 1, an air pressure source 80 that generates high-pressure air is connected to an air pressure supply port 55 via a hose 83. The coating liquid pressure feed port 59 is connected to a coating liquid filter 71 attached to a spray gun 70 via a hose 73, and the blowing air pressure relay port 65 is connected to a blowing air port of the spray gun 70 via a hose 75. Connected.

The connecting portion 14 of the coating solution container 10 is screwed to the container connecting portion 33 of the container holder 30, and the both are integrally connected. By mounting the coating liquid container 10, the hermetic molding section 13 and the close contact member 39 are in close contact with each other, and a communication path 40 isolated from the atmosphere is formed inside the hermetic molding section 13,
An air pressure outlet 37 is opened in the upper part of the communication path 40, and the air pressure inlet 16 is opened in the lower part. Also, stem 1
9 contacts the stem packing 49 to push down the entire stem 19, the stem hole 21 is opened, and the application liquid outlet 2
0 and the bottom of the coating liquid container 10 communicate with each other,
The coating liquid outlet 20 communicates with the coating liquid receiving port 47.

Now, when the high-pressure air, the pressure of which has been adjusted by the coating liquid pressure-adjusting valve 50, is supplied to the inlet port 35 of the container holder 30 through the air pressure pipe 57, the air pressure is transmitted from the air pressure outlet 37. It is sent to the communication path 40 and further introduced into the coating liquid container 10 through the air pressure inlet 16.

In the coating liquid container 10, the air pressure pressurizes the contained coating liquid, whereby the coating liquid passes through the dip tube 29 and the stem 19 and the coating liquid receiving port 47 through the coating liquid outlet 20. Continuously discharged to The coating liquid is further supplied from the outlet port 45 to the liquid feed pipe 5.
8. The pressure is fed to the spray gun 70 via the hose 73 via the coating solution pressure feed port 59.

On the other hand, the high-pressure air, the pressure of which has been adjusted by the blowing air pressure adjusting valve 60, passes through the air pressure pipe 66, the blowing air pressure relay port 65, and the hose 75 through the hose 75.
To be pumped.

When changing the coating liquid by changing the color or the like, the coating liquid container 10 attached to the container holder 30 is removed, and the cleaning liquid is passed through the coating liquid circuit from the coating liquid receiving port 47 to the spray gun 70. Drain residual paint. At this time, the cleaning can be easily performed by using the coating liquid container 10 containing the cleaning liquid, mounting the cleaning liquid on the container holder 30, and then supplying air pressure from the coating liquid pressure-feeding pressure adjusting valve 50.
Then, the application liquid is changed by mounting the application liquid container 10 containing another type of application liquid on the container holder 30.

It should be noted that the present invention is not limited to the above description and examples of the drawings, and the embodiments thereof can be changed without departing from the technical idea of the present invention. For example, various types of coupling means, such as coupling by bayonet coupling and coupling by a clamp, can be used as the coupling means including the coupling portion of the coating liquid container and the container coupling portion of the container holder. Also, the configuration of the coating liquid outlet of the coating liquid container is as follows:
The valve may be omitted as a non-movable type.

[0029]

[Effects of the Invention] As described above, the cartridge type coating solution pumping device of the present invention can change the coating solution simply by attaching and detaching the coating solution container to and from the container holder. By preparing the accommodated coating liquid container in advance, it is possible to quickly and easily change the coating liquid to be used, and it is not necessary to completely clean the tank and replace the coating liquid every time when changing colors as in the conventional case. Time can be saved.

Further, by using the coating liquid container containing the cleaning liquid, it is possible to extremely easily clean the coating liquid circuit when changing colors.

[Brief description of the drawings]

FIG. 1 is a front sectional view of a cartridge type coating liquid pressure feeding device according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of a coating liquid container.

FIG. 3 is a longitudinal sectional view of a container holder.

FIG. 4 is a longitudinal sectional view showing the connection between the container holder and the coating liquid container.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Cartridge type coating liquid pressure feeding apparatus 10 ... Coating liquid container 13 ... Airtight forming part 14 ... Coupling part 16 ... Air pressure introduction port 20 ... Coating liquid outlet 30 ... Container holder 33 Container connection portion 35 Inlet port 37 Air pressure outlet 39 Close member 40 Communication path 45 Outlet port 47 Coating liquid receiving port 50 ..Coating liquid pressure adjusting valve

Continuation of the front page (56) References JP-A-1-130759 (JP, A) JP-A-60-187365 (JP, A) JP-A-64-48175 (JP, U) JP-A-56-86035 (JP, A) , U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A coupling for accommodating a coating liquid and having an air pressure inlet for pressurizing the coating liquid and an outlet for the coating liquid and having an airtight formation surrounding the outer periphery of the air pressure inlet. A coating liquid container having an air pressure inlet port and a coating liquid outlet port, and a container connecting portion that can be connected to a connecting portion of the coating liquid container, and an air pressure outlet that can communicate with the air pressure inlet. And a coating liquid receiving port that can communicate with the coating liquid outlet and is provided so as to be in close contact with the airtight forming portion to form a communication path for high-pressure air between the air pressure outlet and the air pressure inlet. A container holder having a member, and a coating liquid pressure control valve interposed between an air pressure source and an inlet port of the container holder and capable of adjusting the air pressure for pressurizing the coating liquid. Cartridge coating solution pumping apparatus characterized by comprising.