JPH04106669U - Water-based painting booth - Google Patents

Abstract

(57) [Summary] [Purpose] Workpieces to which only organic coatings are applied also have the problem of being heated and cooled for water-based coatings because they are run on the same line as the workpieces to which water-based coatings are applied. [Structure] Heating process 2 for drying water-based painted workpieces in a painting line that mixes and transports workpieces to be coated with water-based paint and organic paints.
1, and the cooling process 22 in which the workpiece heated in the heating process 21 is cooled is separated from other painting processes and made into a separate process, and after the heating process 21 and the cooling process 22 are completed, the cooling process 22 is returned to the branched process again. A water-based painting booth featuring:

Description

[Detailed explanation of the idea]

0001

[Industrial Application Field] This invention relates to a water-based coating booth. in more detail is a workpiece that is coated with a water-based coating and a workpiece that is coated with a coating other than water-based coating, such as an organic coating. For water-based coatings used in painting lines that transport and paint on the same painting line. Regarding the booth.

0002

[Prior art] Painting booths that use conventional organic paints are As illustrated in FIG. 4, which is a schematic diagram of the process, a preparation process 101, an inner plate process 102, Correction process 103, organic paint electrostatic coating process 104 using an automatic machine, and intermediate drying. Next brushing process 105, pre-process correction of centrifugal atomization by Bell automatic machine in the next process solid clear correction step 106, which performs centrifugal spraying using a bell automatic machine; This was done in the lid clear bell automatic machine process 107 and the quality confirmation process 108. Each work The distance depends on the body size, such as 6m to 8m.

0003 On the other hand, recently, painting using water-based paint has come into use; Before use, it must be dried once, and as shown in Figure 4, conventional It is not suitable to use conventional booths that use machine-based paints. In addition, water-based paint is applied. If there are few parts to be coated, a separate booth for the parts to be coated with organic coatings may be used. Since this would be wasteful, a mixing line is required. Therefore, as shown in Figure 5, A water-based paint booth is used. At the same booth, preparation process 101, inner plate process 10 2. Correction process 103, organic paint electrostatic coating process 104 using automatic machine, water-based paint Centrifugal atomization process 111, heating process 112, heating process 113, cooling using Bell automatic machine Step 114, cooling step 115, pre-process correction of centrifugal spraying by Bell automatic machine in the next process solid clear correction step 106, which performs solid clear correction step 106; This is carried out in the automatic clear bell process 107 and the quality confirmation process 108. 111 115 is the water-based coating process. 121a and 121b are shields, and drying process 1 12, 113, cooling steps 114, 115 and other steps before and after are shut off, and the atmosphere is distinguish. However, since the booth consists of straight lines, the entire booth will be long. I had an issue.

0004 Therefore, in order to solve the problem of straight lines, we developed a U-turn as shown in Figure 6. A booth is proposed. At the same booth, the preparation process 101, the inner plate process 102, Correction process 103, organic paint electrostatic coating process 104 using an automatic machine, water-based paint base Centrifugal spraying step 111 using a rotor, heating step 112, heating step 113, cooling step 114, cooling process 115, cooling process 116, next process centrifugal spraying by bell automatic machine Solid clear correction step 106 for pre-process correction, centrifugal spraying by Bell automatic machine This is done in the solid clear bell automatic machine process 107 and quality confirmation process 108. It will be done. 111 to 116 are water-based coating steps. At the same booth, the U-turn section was extended. By reducing the time, the time setting can be changed.

[0005]

[Problem to be solved by the invention] In the conventional U-turn type, the U-turn part It is possible to change the time setting by expanding or contracting the minutes, but the heating and cooling steps can be omitted. It's not about doing it. However, if organic paints are heated for too long, It will have a negative effect on the paint film. In addition, in the same conventional example, workpieces that were only coated with organic paint were also coated with water-based paint. Because it passes through the same line as the work to be painted, heating and cooling for water-based painting I had an assignment to do.

[0006]

[Means for solving the problem] This invention is a workpiece that is coated with water-based paint. In the painting line that mixes and transports the workpieces to be coated with organic paint, water is A heating process for drying painted workpieces, and a heating process for drying painted workpieces. The cooling process for cooling the arc is separated from other painting processes, and the heating process is separated from the other painting processes. and a water-based paint brush characterized by returning to the branched process again after the cooling process is completed. provide a resource.

[0007]

[Operation] Workpieces to be coated with water-based paint should be placed on the main line after the water-based paint is applied. A heating process for drying water-based painted workpieces, and a heating process The cooling process, which cools down the heated workpiece during the process, is separated from other painting processes and is a separate process. After the heating process and the cooling process are completed, the process is returned to the branched process.

[0008] Workpieces to be coated with organic paints can be processed without going through a heating or cooling process. transported along the line.

[0009]

[Example] Figure 1 showing a schematic plan view of a booth of an example of this invention, and other examples Figure 2 shows a partially enlarged schematic plan view of the booth of , and a partially enlarged schematic front view of the booth of another embodiment. The explanation will be made according to FIG. 3 which represents a diagram.

0010 11 is a preparation process in the booth, 12 is an inner plate process, 13 is a correction process, and 14 is a 15 is the electrostatic coating process for organic paint using an automatic machine; Heart atomization process, 16 is a drawing process flush, 17 is a clear solid correction process, 18 19 is a clear solid bell process, and 19 is a confirmation process. In these steps 11 to 19 A main line A of the painting line is formed. In preparation step 11, preparation for painting is carried out. Do the work. In the inner plate step 12, the inner plate portion of the body is painted. In correction process 13 , Apply correction coating to areas that cannot be coated sufficiently using an automatic machine. Organic paint electrostatic coating In the coating process 14, the workpiece to be coated with organic paint is coated with an automatic machine. . In the centrifugal spraying step 15, the work to be coated with water-based paint is sprayed using a bell automatic machine. Apply water-based paint by centrifugal spraying. In the clear solid correction process 17, the next process Perform pre-process correction of centrifugal spraying using Bell automatic machine. In the clear solid bell process, Perform centrifugal spraying using a Bell automatic machine. In confirmation step 19, quality confirmation is performed.

[0011] 21 is a heating process, and 22 is a cooling process. Both are heating and cooling lines for painting lines. Form B. In the heating step 21, the workpiece coated with water-based paint is heated and heated with water. In the cooling process 22, the work heated in the heating process 21 is cooled. let The heating and cooling line B is branched from the main line A in the drawing process 16. Then, the cooling process 22 is provided following the heating process, and the process returns to the drawing process again.

0012 Next, the operation of the embodiment will be explained. For workpieces coated with water-based paint, , by moving on the line, the preparation process 11, the inner plate process 12, the correction process 13, After that, the organic paint electrostatic coating step 14 is reached, in which the organic paint is applied. The water-based paint can be applied in the next step, centrifugal spraying step 15 using the Bell automatic machine. Let's do it. Next, in the drawing process flash 16, the main line A is removed and the heating and cooling line is moved. Moved to Inn B. Then, in the heating step 21, the water is heated and the moisture is dried. Ru. After drying, the workpiece is cooled in a cooling step 22. After cooling, the workpiece goes through the drawing process again. It is returned to the main line A at flash 16. Then, clear solid After passing through the correction process 17 and the clear solid bell process 18, the confirmation process 19 is performed. do business.

[0013] In the case of workpieces to be coated with organic paints, preparation work can be done by moving them on the line. Step 11, inner plate step 12, correction step 13, and then organic paint electrostatic coating step 14. Finally, in the same process, organic paint was applied using an automatic machine. Next, the drawing process flush clear solid correction without moving it to the heating/cooling line B. It is conveyed to step 17 and subjected to correction coating. Next, clear solid bell process 18 is performed automatically. The coating is applied dynamically, and confirmation work is performed in a confirmation step 19.

[0014] Therefore, the workpiece to be coated with water-based paint is transferred to heating and cooling line B. However, the workpiece to be coated with the organic paint is not transported to the heating/cooling line B.

[0015] In the embodiment illustrated in FIGS. 1 and 2, the main line A and the heating/cooling line B are the same. Although it is installed on one plane, as shown in Figure 3, it is three-dimensional on the main line A. If the heating and cooling line B is installed in the Move or return to the upper heating/cooling line B using a rubber sa or transfer machine. In Figure 3 If the heating line is installed three-dimensionally as shown in the diagram, the space will be further reduced. It is also possible to reduce the influence of the heating in the heating process 21 on the main line. is possible.

[0016]

[Effect of the idea] Workpieces to be coated with water-based paint are transferred to heating and cooling line B. However, the workpiece to be coated with organic paint is transported to heating and cooling line B. do not have. Therefore, if a workpiece coated with organic paint takes a long time to dry, quality may be affected. It is possible to minimize the impact.

[0017] Furthermore, it is possible to shorten the main line compared to conventional lines. the Therefore, if the conditioned air inside the booth is sent from one side, the booth can be shortened. Therefore, it is possible to reduce the amount of air to be blown.

[0018] Furthermore, since the main line and heating/cooling line are separate lines, The air inside the on-line booth is less susceptible to the effects of heating during the heating process, making it easier to control quality. This makes it easier and ensures safety.

[0019] The main line and heating/cooling line are separated, so the production tact can be changed. Even if the production of organic solvent-based workpieces is reduced by simply adjusting the residence time of water-based workpieces, There is no impact on the entire spraying process, and it is easy to modify existing booths. .

[Brief explanation of drawings]

[Figure 1] Schematic plan view of an embodiment of this invention

[Fig. 2] Partially enlarged schematic plan view of another embodiment

[Figure 3] Partially enlarged schematic front view of another embodiment

[Figure 4] Schematic plan view of conventional example

[Figure 5] Schematic plan view of conventional example

[Figure 6] Schematic plan view of conventional example

[Explanation of symbols]

11 Heating process 12 Cooling process A main line B Heating cooling line

Claims (1)

[Scope of utility model registration request] Claim 1: A heating process for drying a workpiece coated with water-based paint, and a heating process in a painting line that mixes and conveys a workpiece coated with a water-based paint and a workpiece coated with an organic paint. A water-based painting booth characterized in that a cooling process for cooling a heated workpiece is separated from other painting processes to form a separate process, and the process is returned to the branched process again after the heating process and the cooling process are completed.