JPH06210232A - Coating material supply device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a paint supply device for controlling the temperature of paint during painting in a painting device using a paint can. [Structure] In a paint supply device from a paint can to a coating device, a paint circulation / paint adjustment unit with a paint temperature adjustment function consisting of cold / hot water or an electric heater is installed in the paint can to keep the paint temperature constant during painting. It became possible to control and maintain the viscosity of the paint constant and obtain stable paint.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paint supply device for applying a paint contained in a paint can to a coating device.

[0002]

2. Description of the Related Art FIG. 4 schematically shows the circulation of paint from a conventional paint can to a coating device. Conventionally, the paint stored in the paint can 7 is fed to the coating device 9 by dipping the paint feed pipe (pipe with pump 2b) 2 into the paint can 7 to feed the paint, or by feeding the paint feed pipe (pump). (2b-attached pipe) A method is adopted in which one side of the pipe connected to 2 is immersed and the paint is sent. On the other hand, with respect to the paint return pipe from the coating device 9, the end of the paint return pipe 3 from the coating device 9 is arranged on the upper part of the paint can 7, or it is dipped and the paint is applied from the coating device 9 using its own weight. The way back is taken.

During the circulation of the paint from the paint can 7 to the coating device 9, the temperature of the paint is not adjusted, and when it is necessary to adjust the temperature of the paint, as shown in FIG. A method of heating from the outside of the paint can with a paint can external heating device 11 prepared in advance, for example, a tape heater is used.

[0004]

PROBLEM TO BE SOLVED BY THE INVENTION Paint can 7 and coating device 9
Is connected by a paint feed pipe 2 (a pipe with a pump 2b) 2 and a paint return pipe 3.
The pump 2b is driven by using the wiring 2'e, the paint is sent from the paint can 7 to the coating device 9 through the paint feed pipe (pipe with the pump 2b) 2, and the excess paint (overflow amount, etc.) is passed through the paint return pipe 3. Is returned from the coating device 9 to the paint can 7.

When the temperature of the paint needs to be adjusted, it is heated from the outside of the paint can by the paint can external heating device 11 such as a tape heater which is prepared in advance at another location, and then the paint can is conveyed to the coating position. Although the paint is circulated from the paint can 7 to the coating device 9, the temperature of the paint pipes 2 and 3 of the coating device 9 rises due to the atmosphere (atmosphere, etc.) in the summer, and the paint temperature rises, resulting in a decrease in the paint viscosity. .

On the other hand, in winter, the temperature of the pipes 2 and 3 of the coating device 9 is lowered by the atmosphere (air, etc.), the coating temperature is lowered, and as a result, the coating viscosity is increased, and the coating viscosity is increased during coating. Alternatively, when the coating film thickness is lowered, the coating film thickness becomes thicker or thinner, so that not only the coating film thickness changes with time, but also the coating viscosity sometimes rises, resulting in unpainting failure.

Therefore, an object of the present invention is to provide a paint supply device capable of stable paint by controlling the paint temperature to a constant value during painting and keeping the paint viscosity constant.

[0008]

The present invention advantageously solves the problems of the prior art, and as a result of the inventors' earnest efforts in order to achieve the above object, a coating device for coating a paint can. It is possible to adjust the temperature of the paint in the paint circulation to, and the gist of the invention is (1) in the paint supply device from the paint can to the coating device,
A paint supply device characterized by incorporating a paint circulating / paint adjusting unit consisting of a paint circulating device in which a paint temperature adjusting device is installed in a paint can. (2) A paint supply device characterized in that a temperature control tube using a heat medium is provided as the paint temperature control device according to (1). (3) A paint supply device characterized in that a heating pipe using an electric heater is provided as the paint temperature adjusting device according to (1). It is in.

The present invention will be described in detail below with reference to the drawings. FIG. 1 is a schematic view of a paint circulating / paint adjusting unit according to the present invention. The paint circulation / paint adjustment unit is a paint feed consisting of a paint feed pipe (paint can side) 2a, a pump 2b, a paint feed pipe joint (paint can side) 2c, and a pump drive source joint (paint can side) 2'c. System equipment,
Paint return system equipment consisting of paint return pipe (paint can side) 3a and paint return pipe joint (paint can side) 3c, paint stirring device (paint can side) 4a, paint stirring device drive device 4b
And joint for paint agitator drive source (paint can side) 4c
Paint agitator system equipment consisting of, thermometer (paint can side) 6
a, thermometer wiring joint (paint can side) 6c, temperature adjusting water pipe (paint can side) 5a, temperature adjusting water feed pipe joint (paint can side) 5c, temperature adjusting water return pipe joint (paint can side) It is composed of paint temperature control system equipment consisting of 5c '. These constituent elements are incorporated in the independent paint circulating / paint adjusting unit frame 1.

FIG. 2 is a schematic view when the paint circulating / paint adjusting unit according to the present invention is incorporated in a paint can 7. The paint circulating / paint adjusting unit is self-supporting, and is mounted on the paint circulating / paint adjusting unit mounting base 8 together with the paint can 7 and conveyed to the position of the coating device.

On the other hand, FIG. 3 is a schematic view of the coating apparatus side. The coating equipment side equipment is the paint feed pipe (painting equipment side)
2e, paint feed pipe joint (painting device side) 2d,
Paint feed system equipment consisting of pump drive source piping / wiring (painting equipment side) 2'e and pump drive source joint (painting equipment side) 2'd, paint return piping (painting equipment side) 3e and paint return piping joint (Painting device side) 3d paint return system equipment, paint stirring device drive source piping / wiring (painting device side) 4e, paint stirring device drive source joint (painting device side) 4d paint stirring device drive system equipment, Thermometer wiring (painting device side) 6e, thermometer wiring joint (painting device side) 6d, temperature control water feed pipe (painting device side) 5
e, joint for temperature control water feed piping (coating equipment side)
5d, a temperature control water return pipe (coating device side) 5'e, a joint for temperature control water return pipe (coating device side) 5'd, and a temperature control water temperature adjusting device 10 ing.

After the paint can 7 and the paint circulating / paint adjusting unit mounting base 8 having the paint circulating / paint adjusting unit transferred to the position of the coating device are set in the equipment on the coating device side, the joint and the paint circulating on the coating device side are set. -Connect the paint adjustment unit side joint.

That is, in the paint feeding system, a paint feeding pipe system; paint circulating / paint adjusting unit side 2c and coating device side 2d
Paint feeding device drive system; paint circulation / paint adjusting unit side 2'c and painting device side 2'd Paint return piping system; paint circulating / paint adjusting unit side 3c and painting device side 3d are connected,

In the paint stirring system, the paint stirring device drive system: the paint circulating / paint adjusting unit side 4c and the coating device side 4d are connected,

In the paint temperature adjusting system, a thermometer wiring meter; paint circulating / paint adjusting unit side 6c and coating device side 6d
Temperature control water feed pipe system; paint circulation / paint control unit side 5c and coating device side 5d Temperature control water return pipe system; paint circulation / paint control unit side 5'c and coating device side 5'd are connected.

At the time of painting, the joint 2'for the pump drive source
The pump 2b is driven through d and 2'c, and the coating device 9 is passed from the paint can 7 through the paint feed pipe system joints 2c and 2d.
Paint is sent to the paint return piping joint 3d
And 3c, an excess amount (such as an overflow amount) is returned from the coating device 9 to the paint can 7.

At the same time, the paint temperature of the paint can 7 is passed through the thermometer wiring joints 6c and 6d to the thermometer (paint can side) 6
The value of a is measured, and the temperature-adjusted water adjuster 10 adjusts the adjusted water to a predetermined temperature so that the temperature of the paint in the paint can becomes constant.
c, Water is passed through the temperature control water return pipe system joints 5'c and 5'd to the temperature control water flexible pipe (paint can side) 5a.

If the paint needs to be heated, hot or hot water is used, whereas if the paint needs to be cooled, cold water is used. In this way, the temperature of the paint during painting was controlled to a constant value, the paint temperature was kept constant, and stable painting became possible. The method for adjusting the temperature of the paint can is not limited to circulation of a heat medium such as water, but an optimum method is selected in consideration of the paint (viscosity), the heat capacity of the coating device and the paint pipe, and the like. For example, for paints and coating devices that do not need to be cooled, a heating tube using an electric heater is effective.

Further, even when it is necessary to adjust the paint temperature as a preparation for painting, the paint temperature adjusting mechanism of the paint circulation / paint adjusting unit can be used in advance at another place. It is possible to automate work,
Work becomes easy.

[0020]

As described above, according to the present invention, in the paint circulation from the paint can 7 to the coating device 9, the paint is kept at a constant paint temperature, that is, a constant paint viscosity, without being affected by the heat of the coating device and the paint pipe. It is possible to maintain stable temperature, and it is possible to achieve stable coating without causing coating defects (changes in coating thickness over time, etc.) due to changes in coating temperature during coating.

[Brief description of drawings]

FIG. 1 is a schematic view of a paint circulating / paint adjusting unit according to the present invention.

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

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

FIG. 4 is a schematic diagram when the paint is circulating from a paint can to a coating device according to a conventional method.

FIG. 5 is a schematic view of a heating state of a paint can according to a conventional method.

[Explanation of symbols]

1 paint circulation device / paint adjusting unit frame 2 paint feed pipe (painting device to paint can) 2a paint feed pipe (paint can side) 2b pump 2c paint feed pipe joint (paint can side) 2d paint feed pipe joint (painting) Equipment side) 2e Paint feed pipe (painting equipment side) 2'c Pump drive source joint (paint can side) 2'd Pump drive source joint (painting equipment side) 2'e Pump drive source piping / wiring (painting equipment) 3) Paint return pipe (painting device to paint can) 3a Paint return pipe (paint can side) 3c Paint return pipe joint (paint can side) 3d Paint return pipe joint (painting device side) 3e Paint return pipe (painting) Device side) 4a Paint stirring device 4b Paint stirring device drive device 4c Paint stirring device drive source joint (paint can side) 4d Paint stirring device drive source joint (Painting device side) 4e Paint stirring device drive source piping / wiring (Painting device side) 5a Temperature adjustment water faucet (paint can side) 5c Temperature adjustment water feed pipe joint (paint can side) 5d Temperature adjustment water feed pipe joint (Coating device side) 5e Temperature adjustment water feed pipe (Coating device side) 5'c Temperature adjustment water return pipe joint (paint can side) 5'd Temperature adjustment water return pipe joint (coating device side) 5'e Temperature Adjusted water return pipe (painting device side) 6a Thermometer (paint can side) 6c Thermometer wiring joint (paint can side) 6d Thermometer wiring joint (painting device side) 6e Thermometer wiring (painting device side) 7 Paint can 8 Paint circulating device / Paint adjusting unit mounting base 9 Painting device 10 Temperature adjusting water temperature adjusting device 11 Paint can external heating device

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigehiko Nomura 20-1 Shintomi, Futtsu City, Chiba Shin Nippon Steel Co., Ltd. Technology Development Division (72) Inventor Takayuki Amimoto 9 Kawabuchicho, Hachimanto-ku, Kitakyushu, Fukuoka −27 Taihei Kogyo Co., Ltd. Yawata Branch

Claims (3)

[Claims] 1. A paint supply device from a paint can to a coating device, wherein a paint circulation / paint adjustment unit including a paint circulation device / paint adjustment device in which a paint temperature adjusting device is arranged in the paint can is incorporated. Paint supply device. 2. The paint supply device according to claim 1, further comprising a temperature control pipe using a heat medium as the paint temperature control device. 3. The paint supply device according to claim 1, wherein a heating pipe using an electric heater is provided as the paint temperature adjusting device.