Rapid curing and coating device for automobile parts

Abstract

The utility model relates to the technical field of curing coating, in particular to a rapid curing coating device for automobile parts. The drying device comprises a drying frame, the drying frame comprises a drying chamber, a plurality of flow guide plates are fixedly installed on the surfaces of the three inner walls of the drying chamber, and a plurality of drying mechanisms are arranged on the edge of a workpiece inlet of the drying chamber; the drying mechanism comprises an L-shaped hollow shell, and preheating plates are arranged on the surfaces of the inner walls of the two sides of the shell; the heating layer is arranged at the L-shaped break angle of the shell, the preheating plate is located between the heating layer and the draught fan, the preheating plate is additionally arranged before air flows into the heating layer of the drying mechanism, when high-humidity air flows in, the air is preheated at the preheating plate, water vapor is condensed at the preheating plate, and then the water vapor is heated through the heating layer and blown to the coating surface; and water vapor in high-humidity air can be effectively removed, so that the air blown to the coating surface is free of moisture and does not permeate into the coating, and the situation that the water vapor enters the coating to form micropores in the coating and cause bubbling is avoided.

Description

Technical Field

[0001] This utility model relates to the field of curing coating technology, and more specifically, to a rapid curing coating device for automotive parts. Background Technology

[0002] Coating is a process of applying paint to the surface of a workpiece to achieve protection, decoration, or special functions. After coating, the workpiece needs to be dried and cured to ensure the coating film has good adhesion, hardness, abrasion resistance, and corrosion resistance. The drying and curing methods and conditions depend on the type, properties, and process requirements of the paint.

[0003] In order to achieve better curing results when drying and curing coatings on workpieces, multiple drying methods are required. To address this, Chinese Patent Publication No. CN221674833U provides a coating drying and curing device. This device controls a fan and heating element via a controller, drawing in outside air through a first air inlet, heating it to the required temperature through the heating element, and then sending the hot air into the coating chamber through a second air inlet to dry and cure the coated item. This achieves rapid drying and curing of the coated item, improving coating efficiency and quality. When irradiation is required, the controller controls an electric roller to rotate, causing a moving block to slide along a hanging rod, allowing the heating lamp to move freely inside the coating chamber and irradiate and heat the coated item from multiple angles and directions.

[0004] When air enters the first air inlet, it is directly introduced and heated by the heating element. The hot air is then sent into the coating chamber to dry the coating. In a high-humidity environment, when the high-humidity air enters the heating element and is heated, the moisture is blown to the coating surface and quickly vaporizes. This vapor pressure exceeds the coating strength threshold and penetrates into the undried coating, causing micropores to form inside the coating and making it prone to blistering. Utility Model Content

[0005] This utility model provides a rapid curing coating device for automotive parts. It adds a preheating plate before the air flows into the heating layer of the drying mechanism. When high-humidity air flows in, it is preheated at the preheating plate, causing water vapor to condense on the plate. The heated air is then blown onto the coating surface through the heating layer, thus solving the problems mentioned in the background art.

[0006] High humidity air is directly introduced into the heating element for heating. The water vapor is blown to the coating surface and vaporizes, seeping into the interior of the coating and forming micropores, which can easily lead to surface blistering.

[0007] To achieve the above objectives, the curing coating device includes a drying rack, which includes a drying chamber. Multiple guide plates are fixedly installed on three inner wall surfaces of the drying chamber, and multiple drying mechanisms are provided at the edge of the workpiece inlet of the drying chamber.

[0008] The drying mechanism includes an outer shell, which is L-shaped and hollow, with preheating plates on both inner wall surfaces.

[0009] A heating layer is provided at the "L"-shaped corner of the outer shell, and the preheating plate is located between the heating layer and the fan.

[0010] In the above technical solution, when high-humidity air from the outside flows into the casing from the air inlet, it passes through the preheating plate first according to the airflow direction. The air is preheated at the preheating plate. The heated water vapor comes into contact with the preheating plate, and the water vapor condenses and liquefies due to the temperature difference. It then falls into the casing by gravity. At this time, the preheated air with the moisture removed flows into the heating layer. The heating layer heats the air a second time and then blows it onto the coating surface, so that no water vapor vaporizes on the coating surface and does not penetrate into the coating, thus avoiding blistering on the coating surface.

[0011] Based on this, an air inlet is provided at one end of the "L" shape of the outer shell, and a filter screen is fixedly installed between the inner walls of the outer shell on one side of the air inlet to filter particulate matter in the air. A fan for absorbing air is provided on the side of the filter screen away from the air inlet. After the fan is started, the outside air is drawn into the interior of the outer shell and filtered through the filter screen to remove particulate matter in the air, so that the air blown into the coating area is free of particulate matter that affects the coating effect.

[0012] In another technical solution, drying lamps are fixedly installed on both sides of the air outlet of the housing via lamp holders. When hot air blows onto the coating for drying, the drying lamps simultaneously dry the coating, which can effectively improve the uniformity and efficiency of drying the coating.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] By adding a preheating plate before the air flows into the heating layer of the drying unit, the air is preheated at the preheating plate when high humidity air flows in, and water vapor is condensed at the preheating plate. Then, the air is heated through the heating layer and blown to the coating surface. This effectively removes moisture from the high humidity air, ensuring that the air blown to the coating surface is free of moisture and will not seep into the coating. This prevents moisture from entering and forming micropores in the coating, which can cause bubbling, and effectively improves the quality and efficiency of coating drying. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial structural diagram of the drying chamber of this utility model;

[0017] Figure 3 This is a front view structural diagram of the present invention;

[0018] Figure 4 This is a cross-sectional structural diagram of the drying mechanism of this utility model.

[0019] The meanings of the labels in the diagram are as follows:

[0020] 100. Drying rack; 101. Tabletop; 102. Support frame; 103. Drying chamber; 104. Deflector plate;

[0021] 200. Drying mechanism; 201. Outer shell; 202. Air inlet; 203. Filter screen; 204. Fan; 205. Preheating plate; 206. Heating layer; 207. Air outlet; 208. Lamp holder; 209. Drying lamp. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Currently, when high-humidity air is directly introduced into the heating element for heating, the moisture is blown onto the coating surface, vaporizes, and seeps into the coating, creating micropores and easily leading to surface blistering. This invention provides a rapid curing coating device for automotive parts. (See [link]) Figure 4 The drying rack 100 includes a drying chamber 103. Multiple guide plates 104 are fixedly installed on three inner wall surfaces of the drying chamber 103. Multiple drying mechanisms 200 are provided at the edge of the workpiece inlet of the drying chamber 103.

[0024] The drying mechanism 200 includes an outer shell 201, which is L-shaped and hollow. Preheating plates 205 are provided on both inner wall surfaces.

[0025] A heating layer 206 is provided at the "L"-shaped corner of the outer shell 201, and a preheating plate 205 is located between the heating layer 206 and the fan 204.

[0026] When the drying environment is in a high humidity state, the high humidity air from the outside flows into the outer shell 201 through the air inlet 202. According to the airflow direction, it first passes through the preheating plate 205. The air is preheated at the preheating plate 205. The heated water vapor comes into contact with the preheating plate 205. Due to the temperature difference, the water vapor condenses and liquefies, and falls into the outer shell 201 by gravity. At this time, the air that has been preheated and dehydrated flows into the heating layer 206. The heating layer 206 reheats the air and then blows it onto the coating surface, so that the coating surface does not vaporize and will not penetrate into the coating, thus avoiding blistering on the coating surface.

[0027] See Figure 4 As shown, the outer casing 201 has an air inlet 202 at one end of its "L" shape. A filter screen 203 is fixedly installed between the inner walls of the outer casing 201 on one side of the air inlet 202 to filter particulate matter in the air. A fan 204 for absorbing air is provided on the side of the filter screen 203 away from the air inlet 202. After the operator starts the fan 204, the outside air is drawn into the interior of the outer casing 201 and filtered by the filter screen 203 to remove particulate matter in the air. This air is then blown into the air to be coated, so that no particulate matter affects the coating effect.

[0028] Figure 4 In the middle, drying lamps 209 are fixedly installed on both sides of the air outlet 207 of the outer shell 201 via lamp holders 208. When hot air blows to the coating for drying, the drying lamps 209 simultaneously dry the coating, which can effectively improve the uniformity and efficiency of drying the coating.

[0029] Figures 1-3 In the drying chamber 103, multiple guide plates 104 are fixedly installed on three inner wall surfaces. The guide plates 104 guide the hot air to form a spiral upward airflow by their own angle, avoiding excessive local wind speed, which would cause drip defects on the coating surface. In addition, the guide plates 104 force the airflow to cover the leeward side of the workpiece, thereby increasing the hot air contact area.

[0030] Working principle: During use, the operator moves the support frame 102 of the drying rack 100 using the casters and places it in the desired position. The workpiece is placed in the drying chamber 103 via the table 101. Then, the fan 204 and drying lamp 209 are turned on. When the drying environment is in a high humidity state, the high humidity air from outside flows into the outer shell 201 through the air inlet 202. The outside air is drawn into the outer shell 201 and filtered through the filter screen 203 to remove particulate matter. This ensures that the air blown towards the coating process is free of particulate matter that could affect the coating effect. Then, according to the airflow direction, the air is preheated as it passes through the preheating plate 205. The heated water vapor comes into contact with the preheating plate 205, and due to the temperature difference, the water vapor... The vapor condenses and liquefies, falling into the outer shell 201 by gravity. At this time, the preheated air, which has been dehydrated, flows into the heating layer 206. The heating layer 206 reheats the air and then blows it onto the coating surface, ensuring that no water vapor evaporates on the coating surface and does not seep into the coating, thus preventing blistering. Simultaneously, while the hot air blows onto the coating for drying, the drying lamp 209 also dries the coating. In addition, multiple guide plates 104 guide the blown hot air to form a spiral upward airflow, preventing excessively high local wind speeds that could cause drip defects on the coating surface. Furthermore, the guide plates 104 force the airflow to cover the leeward side of the workpiece, increasing the hot air contact area and effectively improving the uniformity and efficiency of coating drying.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rapid curing coating device for automotive parts, comprising a drying rack (100), characterized in that: The drying rack (100) includes a drying chamber (103), and multiple guide plates (104) are fixedly installed on three inner wall surfaces of the drying chamber (103). Multiple drying mechanisms (200) are provided at the edge of the workpiece inlet of the drying chamber (103). The drying mechanism (200) includes an outer shell (201), which is L-shaped and hollow. Both inner walls on both sides are provided with preheating plates (205). The outer shell (201) has an L-shaped bend with a heating layer (206) and the preheating plate (205) is located between the heating layer (206) and the fan (204).

2. The rapid curing coating device for automotive parts according to claim 1, characterized in that: The outer shell (201) has an air inlet (202) at one end of its "L" shape. A filter screen (203) is fixedly installed between the inner walls of the outer shell (201) on one side of the air inlet (202) for filtering particulate matter in the air.

3. The rapid curing coating device for automotive parts according to claim 2, characterized in that: The filter (203) is provided with a fan (204) for absorbing air on the side away from the air inlet (202).

4. The rapid curing coating device for automotive parts according to claim 1, characterized in that: The outer shell (201) has an air outlet (207) at the other end of its "L" shape. The air outlet (207) faces the inner cavity of the drying chamber (103) and blows hot air out of it.

5. The rapid curing coating device for automotive parts according to claim 1, characterized in that: The outer casing (201) has drying lamps (209) fixedly installed on both sides of the air outlet (207) by lamp holders (208).

6. The rapid curing coating device for automotive parts according to claim 1, characterized in that: The drying rack (100) includes a tabletop (101), which is fixed to the upper drying chamber (103) by a support frame (102).

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