JP2750801B2 - Paint supply device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for supplying a paint to a coating apparatus for a paint contained in a paint can.

[0002]

2. Description of the Related Art FIG. 6 schematically shows a conventional method of circulating paint from a paint can to a coating apparatus. Conventionally, the paint contained in the paint can 5 is fed to the coating device 7 by immersing a paint feed pipe (pipe with a pump 2b) 2 in the paint can 5 and feeding the paint or a paint feed pipe (pump). A method of immersing one side of a pipe connected to 2) and feeding the paint is adopted. On the other hand, with respect to the paint return pipe from the coating apparatus 7, the end of the paint return pipe 3 from the coating apparatus 7 is disposed or immersed in the paint can 5, and the paint is returned from the coating apparatus 7 by using the weight of the paint. Has been taken. On the other hand, at the end of the coating, the pump 2b is stopped, and the remaining paint of the coating device 7 is collected in the paint can 5 through the paint return pipe 3. Then, the paint feed pipe (pipe with the pump 2b) 2 and the paint return pipe 3 are connected to the coating apparatus 7 , And the coating device 7 and these pipes are each washed to prepare for the next coating of the paint.

[0003]

SUMMARY OF THE INVENTION Paint can 5 and coating device 7
Are connected by a paint feed pipe (pipe with pump 2b) 2 and a paint return pipe 3, and at the time of coating, a pump drive source pipe and
The pump 2b is driven using the wiring 2'e to send paint from the paint can 5 to the coating apparatus 7 through the paint feed pipe (pipe with pump 2b) 2 and excess paint (overflow, etc.) through the paint return pipe 3. From the coating apparatus 7 to the paint can 5.

On the other hand, at the end of the coating, the pump 2b is stopped, and the remaining paint of the coating device 7 is collected into the paint can 5 through the paint return pipe 3. Then, the coating device 7 and the pipes 2 and 3 prepare for coating of the next paint. However, it is difficult to remove the paint between the pump 2b and the coating device 7 because the paint feed pipe (the pipe with the pump 2b) 2 includes the pump 2b. In particular, since highly viscous paint cannot be removed, the paint feed pipe (pump with a pump 2b) 2 is unavoidably separated from the coating device 7 manually, and the paint return pipe 3 is also painted manually. After being separated from the device 7, the coating device 7 and the pipes 2 and 3 must be individually washed, and the workability is not good.

In addition, before the next paint is applied, it is necessary to provide a washed paint feed pipe (pipe with a pump 2b) 2 and a paint return pipe 3 to the coating apparatus 7, which is complicated.
FIG. 4 shows an example of a conventional method of connecting a pump (for paint can) 2b and front and rear pipes. The suction pipe 8 of the pump and the discharge pipe 9 of the pump are horizontal, and the paint remaining in the pump at the end of coating is not easily discharged outside the pump. Therefore, the present invention makes it possible to automatically discharge paint in a coating device and a paint pipe between a paint can and a coating device at the end of coating. It is an object of the present invention to provide a paint supply device which enables the above.

[0006]

DISCLOSURE OF THE INVENTION The present invention advantageously solves the problems of the prior art, and the inventors of the present invention have made intensive efforts to achieve the above object, and as a result, a coating apparatus at the end of coating. And a paint can be automatically discharged from the paint pipe between the paint can and the coating device. The gist of the invention is as follows: (1) In a paint supply device from a paint can to a coating device,
Paint circulation device (2b), paint feed pipe (2a), paint return
Pipe (3a), paint adjusting device (4a), and coating equipment
At the end of painting of the paint
Cover the paint circulation device from above the paint circulation device for natural discharge.
A paint supply device comprising a paint can and an integrated paint circulation / paint adjustment unit consisting of a pipe (2 "a) leading to a paint can and (2) a. A paint supply device characterized in that a discharge port pipe (8, 9) which allows the paint in the paint circulation device to be naturally discharged into a paint can at the end of painting of the paint device in the circulation device (2b) is inclined. It is in.

Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic view of a paint circulation / paint adjustment unit according to the present invention. The paint circulation / paint adjustment unit includes a paint feed pipe (paint can side) 2a, a pump 2b, a paint feed pipe joint (paint can side) 2c, a pump drive source joint (paint can side) 2'c, a bypass pipe ( Paint can side) 2 "
a, a paint feed system comprising a bypass pipe valve (paint can side) 2 ″ b and a bypass pipe valve drive source joint (paint can side) 2 ″ c, paint return pipe (paint can side) 3a and paint return pipe Paint return system equipment consisting of joint (paint can side) 3c, paint adjusting device (paint can side) 4 if necessary
a, a paint adjusting device drive unit 4b and a paint adjusting device drive source joint (paint can side) 4c. These components are incorporated in a self-standing type paint circulation / paint adjustment unit frame 1.

FIG. 2 is a schematic view when the paint circulation / paint adjustment unit according to the present invention is incorporated in a paint can 5. The paint circulation / paint adjustment unit is self-supporting, and is mounted together with the paint can 5 on the paint circulation / paint adjustment unit mounting base 6 and transported to the coating apparatus position. FIG. 3 is a schematic view of the coating apparatus. The coating equipment side equipment includes a paint feed pipe (coating apparatus side) 2e, a paint feed pipe joint (coating apparatus side) 2e.
d, pump drive source piping and wiring (coating device side) 2'e, pump drive source joint (coating device side) 2'd, bypass pipe valve drive source piping and wiring (coating device side) 2 "e, bypass pipe Valve drive source joint (coating device side) 2 ″
d) paint feed system equipment, paint return pipe (coating device side) 3e and paint return pipe joint (coating device side) 3
d, a paint adjusting device drive source piping / wiring (coating device side) 4e, and a paint adjusting device drive source joint (coating device side) 4d as necessary. ing.

After the paint can 5 and the paint circulation / paint adjustment unit mounting table 6 equipped with the paint circulation / paint adjustment unit are transported to the painting equipment position, the paint circulation / paint adjustment unit mounting table 6 is set on the painting equipment side equipment, and then the paint circulation joint and paint circulation. -Paint control unit side (Paint feed system: paint feed pipe system; paint circulation-paint control unit side 2c coating device side 2d paint feed device drive system; paint circulation / paint control unit side 2'c and coating device side 2 ' d Bypass pipe system: paint circulation / paint adjustment unit side 2 "c and coating equipment side 2" d, paint return piping system: paint circulation / paint adjustment unit side 3c and coating equipment side 3
d, if necessary, a paint control device drive system: the paint circulation / paint control unit side 4c and the coating device side 4d) are connected, and during coating, a bypass pipe valve drive source joint 2 "d, 2"
After the bypass pipe valve (paint can side) 2 ″ b is closed via c, the pump 2b is driven via the pump drive source joints 2′d and 2′c , and the paint feed pipe joint 2 is The paint is sent to the coating device 7 through 2d, and excess paint (such as overflow) is returned from the coating device 7 to the paint can 5 through the paint return piping joints 3d and 3c.

At the end of coating, the pump 2b is stopped via the pump drive source joints 2'd and 2'c, and then the bypass pipe valve (paint) is passed via the bypass pipe valve drive source joints 2 "d and 2" c. The can side 2) b is opened, the paint in the coating apparatus 7 and the paint return pipes 3e to 3a is collected into the paint can 5, and the paint between the paint feed pipe 2e and the pump (for paint can) 2b is bypassed in the bypass can 2 ". collected through a. On the other hand, FIG. 5 shows an example of connecting the pump (for paint can) 2b and the front and rear pipes according to the present invention. As shown in FIG. 5, the suction pipe 8 of the pump is V-shaped to reduce the remaining amount of liquid below the pump at the end of coating, and the discharge pipe 9 of the pump is V-shaped to reduce the remaining liquid above the pump. And the amount of subsequent cleaning liquid used can be reduced. In this way, the paint in the coating apparatus 7 and the paint pipes 2 and 3 can be collected without separating the paint pipes 2 and 3 from the coating apparatus. Further, instead of the paint can 5, a can containing a cleaning liquid is used, and the cleaning liquid is circulated to the coating apparatus 7 in the same manner as the paint, whereby the coating apparatus 7 and the paint pipes 2, 3 can be integrally washed.

[0011]

As described above, according to the present invention, in the circulation of paint from the paint can 5 to the coating apparatus 7, the paint in the paint tube can be easily discharged at the end of painting, and the paint must be manually inserted, including the subsequent cleaning. It is possible to do without.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a paint circulation / paint adjustment unit according to the present invention;

FIG. 2 is a schematic view when a paint circulation / paint adjustment unit according to the present invention is set in a paint can.

FIG. 3 is a schematic view of a coating apparatus according to the present invention;

FIG. 4 is a schematic view of an upper and lower mounting portion of a pump according to a conventional method;

FIG. 5 is a schematic view of an upper and lower mounting portion of a pump according to the present invention;

FIG. 6 is a schematic view of a paint circulation from a paint can to a coating device according to a conventional method.

[Explanation of symbols]

Reference Signs List 1 paint circulation device / paint adjustment unit frame 2 paint feed pipe (painting device to paint can) 2a paint feed pipe (paint can side) 2d pump (paint can side) 2c paint feed pipe joint (paint can side) 2d paint feed Pipe joint (coating device side) 2e Paint feed pipe (coating device side) 2'c Pump drive source joint (paint can side) 2'd Pump drive source joint (coating device side) 2'e Pump drive source piping -Wiring (coating device side) 2 "a bypass pipe (paint can side) 2" b bypass pipe valve (paint can side) 2 "c bypass pipe valve drive source joint (paint can side) 2" d bypass pipe valve drive Source joint (coating device side) 2 ″ e Bypass pipe valve drive source piping / wiring (coating device side) 3 Paint return piping (coating device to paint can) 3a Paint return piping (paint can side) 3 c Joint for paint return pipe (paint can side) 3d Joint for paint return pipe (coating apparatus side) 3e Paint return pipe (coating apparatus side) 4a Paint adjuster (for paint can : stirrer, etc.) 4b Paint adjuster drive ( 4c Paint adjusting device drive source joint (paint can side) 4d Paint adjusting device drive source joint (painting device side) 4e Paint adjusting device drive source piping / wiring (painting device side) 5 Paint can 6 Paint circulation Equipment / Paint adjustment unit mounting base 7 Painting equipment 8 Pump suction pipe 9 Pump discharge pipe

Continued on the front page (72) Inventor Shigehiko Nomura 20-1 Shintomi, Futtsu-shi, Chiba Nippon Steel Corporation Technology Development Division (72) Inventor Kenichi Shimizu 9-27 Kawabuchi-cho, Yawata-Higashi-ku, Kitakyushu-shi, Fukuoka Taihei Kogyo Co., Ltd. Yawata Branch (56) References JP-A-3-161078 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) B05C 11/10-11/105 B05C 9 / 08-9/12

Claims (2)

(57) [Claims] In a paint supply device from a paint can to a paint device, a paint circulation device (2b) and a paint feed pipe (2a).
・ Paint return pipe (3a) ・ Paint adjusting device (4a)
At the end of painting by the painting equipment,
Paint circulation from the top of the paint circulation device for natural discharge of pipe paint
From the pipe (2 "a) that bypasses the ring device and goes to the paint can
Paint supply apparatus according to claim paint circulation, paint regulating unit integrated structure, it incorporated into paint cans that. 2. A sloping paint circulation system according to claim 1, wherein the discharge port pipe to allow naturally discharged to the paint can paint in paint circulation system when painting the end of the coating device in (2b) (8,9) A paint supply device characterized by having a mark.