KR0128152B1 - Rinsing device for remaining paint in painting line - Google Patents

Abstract

Disclosed is a bypass device to quickly clean the paint remnants in an automatic painting process of automobiles in order to speed up the process. The device comprises two ports(1,2) to supply the paint #1, #2; an air pressure regulator; an automatic painter(5) connected with a constant gear pump(4); a bypass valve(V) in the line from the pump(4) to the automatic painter(5); a pipe 3mm I.D. and 9mm O.D. that delivers the waste paint. The device increases productivity and reduces cost.

Description

Residual paint cleaning device for automotive automatic painting line

1 is a schematic diagram of a conventional device.

2 is a system diagram of the present invention.

* Explanation of symbols for main parts of the drawings

1,2: Inlet 3: Air Pressure Regulator

4: gear pump 5: automatic coating machine

6: return line 7: fasciner tank

8: Pipe V: Bypass Valve

The present invention relates to a residual paint cleaning device of an automobile coating line, and more particularly, after completing a certain color painting work in automobile painting, the paint remaining in the painting line needs to be cleaned in order to paint the next color. It is a bypass device to make cleaning work quickly.

The system of the conventional automotive automatic painter line is connected to the thinner and the first and second paint containers, which are solvents, from the pulse air line, as shown in FIG. 1, and the air pressure regulator is connected to the gas pumping gear pump through the pipe. It is connected to the bell of the turbine type automatic sprayer, and the return line of this automatic coating machine is connected to the fasciner tank.

However, this automatic paint line system, for example, when changing from the first paint to the second paint, the return line of the automatic painter is about 2ψ narrow, which delays the time to clean the entire line with thinner, so that Due to the long waiting period for painting work, it is becoming a factor for the cost increase due to delay in the shipment of automobiles.

If the thinner, which is a paint cleaning solvent, can be quickly passed through and returned to the automatic painting line, the time can be shortened, thereby reducing the cycle time of the painting process. Conventionally, the inefficient cleaning line as shown in FIG. 2 is conventionally followed. I'm doing it.

The present invention is to install the bypass valve in the pipeline from the pump to the automatic coating in order to quickly perform the cleaning work of the residual paint when changing the color in the automotive automatic painting line to perform the cleaning work of the residual paint in two systems The cleaning work of the residual paint for the next color painting work was performed quickly.

DETAILED DESCRIPTION Hereinafter, the gist of the present invention will be described in detail with reference to the accompanying drawings which are embodiments thereof.

The inlet (1) (2) of the paint 1,2 and the air pressure regulator (3) and the metered discharge gear pump (4) are connected to the automatic coating machine (5) and the return line (6) is connected to the fasciner tank (7). In a typical automotive automatic paint line, a solvent-proof bypass valve (V) is installed between the fixed quantity discharge gear pump (4) and the automatic coating machine (5), and a φ6 (inner diameter) × 9 (outer diameter) pipe ( It is a device to pipe 8) in parallel with the existing return line (6) in the faucet tank (7).

The present invention as described above has to clean the paint remaining on the entire automatic coating line when changing to the next color during automatic coating of the car. In the conventional return line (6), the inner diameter is small as 2ψ, so the cleaning time is strong. On the other hand, the present invention is to turn on the bypass valve (V) to bypass the waste paint cleaned by the solvent as a thick ψ6 × 9 pipe (8) and to discharge it to the waste thinner tank (7), thereby quickly cleaning. The task is complete.

The present invention has the effect of increasing the production volume by reducing the painting waiting time due to the shortening of the cleaning work time, and the cleaning effect is good by cleaning many solvents quickly through the automatic coating line system. When changing from the first paint to the second paint, the return line of the automatic spraying machine is narrowed to about 2ψ, which delays the time to clean the entire line with thinner. It eliminates the factor of cost increase and enables the rapid passage and return of thinner, a paint cleaning solvent, to the automatic painting line, which shortens the cycle time of the painting process by shortening the time. It is.

Claims (1)

The inlet (1) (2) of the paint 1,2 and the air pressure regulator (3) and the fixed-quantity discharge gear pump (4) are connected to the automatic coating machine (5), and the return line (6) is the waste tank (7). In a typical automotive automatic coating line piped in the above), a solvent-resistant bypass valve (V) is installed between the fixed-quantity discharge gear pump (4) and the automatic coating machine (5), so that ψ6 (inner diameter) x 9 (outer diameter) Residual paint cleaning device of the automotive automatic painting line, characterized in that the pipe (8) by piping in parallel with the existing return line (6) in the thinner tank (7).