Spraying line for converter

Abstract

The utility model relates to a spraying production line, in particular to a converter spraying line which comprises an annular hanger guide rail, the hanger guide rail is arranged through a plurality of stand columns, and a workpiece feeding area, a preheating area, a base coating area, a first curing area, a surface coating area, a second curing area, a cooling area, a workpiece taking area and a transition area are sequentially arranged on the path of the hanger guide rail. A plurality of heaters are arranged in the preheating area, the first curing area and the second curing area; a filter is arranged at the top of the base coating area and the top coating area; the converter spraying line adopting the scheme has the advantages of high heat energy utilization rate and high production efficiency.

Description

Technical Field

[0001] This utility model relates to a spraying production line, specifically a converter spraying line. Background Technology

[0002] Before leaving the factory, plastic parts need to be coated with a paint, usually by first applying a base coat and then a top coat. The plastic parts also need to be preheated before coating to improve the adhesion of the coating, and both the base coat and top coat application must be carried out at relatively high temperatures.

[0003] Existing spraying production lines have a low degree of automation. The process of transferring between preheating, primer (spraying the base coat), and topcoat (spraying the top layer) wastes a lot of heat, resulting in poor spraying quality and low production efficiency. Therefore, there is an urgent need for a highly automated spraying production line. Utility Model Content

[0004] The present invention aims to provide a converter coating line that can reduce heat loss between processes, improve coating quality, and increase production efficiency.

[0005] The converter coating line in this solution includes a ring-shaped hanging rack guide rail, which is supported by multiple columns. Along the path of the hanging rack guide rail are sequentially arranged a loading area, a preheating area, a primer area, a first curing area, a topcoat area, a second curing area, a cooling area, a part removal area, and a transition area. Multiple heaters are provided in the preheating area, the first curing area, and the second curing area. Filters are provided on the top of the primer area and the topcoat area.

[0006] The workpiece is loaded from the loading area onto the hanging rack on the guide rail, enters the preheating area for preheating, and then undergoes a base coat spraying in the primer area. After the primer is cured and stabilized in the first curing area, it enters the top coat area for top coat spraying. After the spraying process is completed, it enters the second curing area for curing. This curing process completely cures the top coat and primer to ensure the stability of the workpiece's paint surface. After rapid cooling in the cooling area, it is sent to the unloading area to complete the workpiece spraying process. The hanging rack continues to circulate to the loading area through the transition area, and the cycle repeats.

[0007] Furthermore, the mounting bracket guide rail includes a first guide rail and a second guide rail, which are equally spaced and arranged in a U-shape. This dual-guide rail configuration doubles the production capacity.

[0008] Furthermore, heaters are provided between and on both sides of the first guide rail and the second guide rail in the preheating zone, the first curing zone, and the second curing zone.

[0009] Furthermore, the path length ratio of the hanging track in the preheating zone, the first curing zone, and the second curing zone is 1:(1~1.2):(5~5.5).

[0010] Furthermore, the first guide rail within the base coating area is base coating area one, and the second guide rail within the base coating area is base coating area two.

[0011] Furthermore, the first guide rail within the topcoat area is topcoat area one, and the second guide rail within the topcoat area is topcoat area two.

[0012] Furthermore, the path length ratio of the hanging track in the preheating zone, the first curing zone, and the second curing zone is 1:1:5.2.

[0013] Furthermore, multiple blowers are respectively provided on both sides of the first guide rail and the second guide rail of the cooling zone.

[0014] Furthermore, the filter contains a honeycomb structure filter element.

[0015] The advantages of this utility model are: the workpiece enters the preparatory process from the preheating zone, and then undergoes two spraying and curing processes. There is no need to transfer the workpiece between processes. The workpiece can complete the spraying process by passing through the hanger guide rail. The processes are closely connected, and the path lengths of the preheating zone and the two curing zones are reasonably designed, which basically realizes the automation of the spraying process, has high production efficiency, makes full use of energy, and avoids energy waste. Attached Figure Description

[0016] Figure 1 This is a top view of the converter spraying line of this utility model.

[0017] Figure 2 This is a schematic diagram of the main structure of the converter spraying line of this utility model;

[0018] Figure 3 This is a schematic diagram of the filter structure in the converter spraying line of this utility model.

[0019] In the diagram, 1 is the loading area, 2 is the preheating area, 3-1 is the primer zone 1, 3-2 is the primer zone 2, 4 is the first curing zone, 5-1 is the topcoat zone 1, 5-2 is the topcoat zone 2, 6 is the second curing zone, 7 is the cooling zone, 8 is the part removal area, 9 is the transition zone, 10 is the column, 11 is the first guide rail, 12 is the second guide rail, 13 is the heater, 14 is the filter, 15 is the filter element, and 16 is the blower. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0021] according to Figures 1 to 3As shown, the converter coating line in this solution includes a ring-shaped hanging guide rail. The hanging guide rail is supported by multiple columns 10, and multiple hanging racks are installed on the hanging guide rail for suspending the workpieces to be coated. In this embodiment, the hanging guide rail includes a first guide rail 11 and a second guide rail 12, which are equally spaced and arranged in a U-shape. The dual guide rail setup doubles the production capacity.

[0022] The mounting rails are sequentially arranged with a loading area 1, a preheating area 2, a primer area, a first curing area 4, a topcoat area, a second curing area 6, a cooling area 7, a part removal area 8, and a transition area 9. In this embodiment, the first guide rail 11 in the primer area is primer area one 3-1, and the second guide rail 12 in the primer area is primer area two 3-2. The first guide rail 11 in the topcoat area is topcoat area one 5-1, and the second guide rail 12 in the topcoat area is topcoat area two 5-2.

[0023] The workpiece is loaded from the loading area 1 onto the hanging rack on the guide rail, enters the preheating area 2 for preheating, and then the primer is sprayed in the base coat area. After the primer is cured and stabilized in the first curing area 4, it enters the top coat area for the outer paint spraying. After the spraying process is completed, it enters the second curing area 6 for curing. This curing process completely cures the top coat and primer to ensure the stability of the paint surface of the workpiece. After being rapidly cooled in the cooling area 7, it enters the unloading area 8 to complete the workpiece spraying process. The hanging rack continues to circulate back to the loading area 1 through the transition area 9, and the cycle repeats.

[0024] The preheating zone 2, the first curing zone 4, and the second curing zone 6 are equipped with multiple heaters 13; specifically, heaters 13 are provided between and on both sides of the first guide rail 11 and the second guide rail 12 in the preheating zone 2, the first curing zone 4, and the second curing zone 6.

[0025] The path length ratio of the hanging track in the preheating zone 2, the first curing zone 4, and the second curing zone 6 is 1:(1~1.2):(5~5.5). As a further improvement of this embodiment, the path length ratio of the hanging track in the preheating zone 2, the first curing zone 4, and the second curing zone 6 is 1:1:5.2. Specifically, in this embodiment, the path length of the preheating zone 2 is 5 meters, the path length of the first curing zone 4 is 5 meters, and the second curing zone 6 has a bending design at the turning point, with a path length of 21 meters.

[0026] Multiple blowers 16 are provided on both sides of the first guide rail 11 and the second guide rail 12 of the cooling zone 7. More specifically, three industrial blowers 16 are provided on both sides of the first guide rail 11 and the second guide rail 12.

[0027] A filter 14 is provided at the top of the primer and topcoat areas. The filter 14 contains a honeycomb structure filter element 15.

[0028] The workpiece enters the preparatory process from the preheating zone 2, and then undergoes two spraying and curing processes. There is no need to transfer the workpiece between processes. The workpiece can complete the spraying process by passing through the hanger guide rail. The processes are closely connected, and the path lengths of the preheating zone 2 and the two curing zones are reasonably designed, which basically realizes the automation of the spraying process, has high production efficiency, makes full use of energy, and avoids energy waste.

[0029] The above description is merely an embodiment of this utility model, and common knowledge such as specific structures and characteristics of the solution is not described in detail here. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model, and these should also be considered within the protection scope of this utility model. These modifications and improvements will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A converter coating line, comprising a ring-shaped hanging guide rail, characterized in that: The hanging rack guide rail is set by multiple columns, and the path of the hanging rack guide rail is sequentially provided with a loading area, a preheating area, a primer area, a first curing area, a top coating area, a second curing area, a cooling area, a picking area, and a transition area; multiple heaters are provided in the preheating area, the first curing area, and the second curing area; filters are provided on the top of the primer area and the top coating area.

2. The converter coating line according to claim 1, characterized in that: The bracket guide rail includes a first guide rail and a second guide rail, which are equally spaced and arranged in a U-shape.

3. The converter coating line according to claim 2, characterized in that: Heaters are provided between and on both sides of the first guide rail and the second guide rail in the preheating zone, the first curing zone and the second curing zone.

4. The converter coating line according to claim 1, characterized in that: The path length ratio of the hanging track in the preheating zone, the first curing zone and the second curing zone is 1:(1~1.2):(5~5.5).

5. The converter spraying line according to claim 2, characterized in that: The first guide rail in the base coat area is the base coat area one, and the second guide rail in the base coat area is the base coat area two.

6. The converter coating line according to claim 2, characterized in that: The first guide rail in the topcoat area is the topcoat area one, and the second guide rail in the topcoat area is the topcoat area two.

7. The converter coating line according to claim 4, characterized in that: The path length ratio of the hanging track in the preheating zone, the first curing zone, and the second curing zone is 1:1:5.

2.

8. The converter coating line according to claim 2, characterized in that: Multiple blowers are respectively provided on both sides of the first and second guide rails of the cooling zone.

9. The converter coating line according to claim 1, characterized in that: The filter contains a honeycomb structure filter element.

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