Air purification structure for manufacturing low-pollution furniture

By incorporating a fan, air inlet pipe, air outlet pipe, activated carbon, and heating unit into the spraying machine, air purification and coating drying are synchronized, solving the problem of poor adhesion after spraying and improving furniture manufacturing efficiency and coating drying quality.

CN223970332UActive Publication Date: 2026-03-06DONGGUAN AOQUN HOUSEHOLD PRODUCTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing spraying machines fail to effectively combine air circulation and coating drying after spraying, resulting in reduced furniture manufacturing efficiency.

Method used

The system employs a combination of a fan, air inlet duct, air outlet duct, activated carbon, and heating unit to achieve simultaneous air circulation and purification and coating drying. Activated carbon adsorbs VOCs, while the heating unit provides hot air to accelerate coating drying.

Benefits of technology

This improves furniture manufacturing efficiency by simultaneously operating air circulation purification and hot air drying, thereby increasing airflow rate and coating drying quality and ensuring optimized equipment performance.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to an air purification structure for low-pollution furniture manufacturing, which comprises a purification structure arranged on a machine body, the purification structure is arranged in the machine body corresponding to a spraying assembly, the purification structure comprises a fan, an air inlet pipe, an air outlet pipe, activated carbon and a heating unit, the fan is arranged on the machine body, and the air inlet pipe is arranged on the machine body. The air inlet pipe is arranged at the air inlet end of the draught fan, the air outlet pipe is arranged at the air outlet end of the draught fan, the air outlet pipe and the air inlet pipe are arranged in the machine body, the air outlet pipe and the air inlet pipe are distributed up and down, the air outlet pipe and the air inlet pipe are communicated with the inner space of the machine body, the activated carbon is arranged on the air inlet pipe, and the air outlet pipe and the air outlet pipe are communicated with the inner space of the machine body. And the heating unit is arranged below the air outlet pipe. According to the air purification structure for low-pollution furniture manufacturing, synchronous operation of air circulation purification and hot air drying is achieved through cooperative work of the draught fan and the heating unit, so that air purification and coating drying are efficiently completed in the spraying process, and the furniture manufacturing efficiency is overall improved.
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Description

Technical Field

[0001] This utility model relates to the field of furniture manufacturing technology, specifically to an air purification structure for the production of low-pollution furniture. Background Technology

[0002] In the furniture manufacturing industry, spray painting machines are an important piece of equipment, mainly used for coating, painting, or applying protective coatings to furniture surfaces. They can effectively improve coating efficiency, enhance the aesthetics and smoothness of furniture surfaces, and at the same time enhance the durability and corrosion resistance of furniture. Spray painting machines are widely used in surface coating processes to improve the appearance quality and durability of products. Traditional spray painting machines are usually equipped with an exhaust system to purify the air in the spraying environment and reduce the emission of paint mist and harmful gases. This exhaust method effectively cleans the air in the work area and improves the safety of the workers' working environment.

[0003] In existing technologies, the drying of coatings after furniture board spraying usually relies on external drying equipment. However, air purification is required during furniture board spraying. Current spraying machines only purify the air through air circulation and do not combine air circulation with the drying of the coating after spraying, which reduces the efficiency of furniture manufacturing. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an air purification structure for the manufacture of low-pollution furniture. It has the advantage of combining air purification through airflow with the drying of the coating after spraying, thus solving the problem of not combining air purification through airflow with the drying of the coating after spraying.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an air purification structure for low-pollution furniture manufacturing, comprising a purification structure mounted on a body, wherein the purification structure is disposed within the body corresponding to a spraying component, the purification structure comprising a fan, an air inlet pipe, an air outlet pipe, activated carbon, and a heating unit, wherein the fan is mounted on the body, the air inlet pipe is disposed at the air inlet end of the fan, the air outlet pipe is disposed at the air outlet end of the fan, both the air outlet pipe and the air inlet pipe are disposed within the body and are arranged vertically, both the air outlet pipe and the air inlet pipe are connected to the internal space of the body, the activated carbon is disposed on the air inlet pipe, and the heating unit is disposed below the air outlet pipe.

[0006] Preferably, the end of the air outlet pipe away from the fan is provided with an air outlet shroud located inside the machine body, the heating unit is disposed inside the air outlet shroud, the heating unit includes an electric heating wire and a control structure, the electric heating wire is disposed inside the air outlet shroud, the control structure is disposed inside the air outlet shroud, and the control structure and the spraying assembly are electrically connected to the fan.

[0007] Preferably, the air inlet pipe includes a first pipe, a second pipe and a third pipe connected in sequence. The first pipe is connected to the air inlet end of the fan. The activated carbon is disposed on the first pipe. The third pipe is connected to the internal space of the machine body. The second pipe is a U-shaped pipe and the third pipe is a continuous M-shaped pipe.

[0008] Preferably, an installation section is formed on the first tube, a cover plate is provided on the installation section, the cover plate is snapped into the installation section, and the activated carbon is disposed inside the installation section.

[0009] Preferably, the mounting section is made of a transparent material, and the activated carbon is provided with a bromophenol blue acid-base indicator layer.

[0010] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0011] 1. This air purification structure for low-pollution furniture manufacturing achieves simultaneous air circulation purification and hot air drying through the coordinated operation of a fan and a heating unit. While activated carbon adsorbs VOCs, the heating unit provides hot air to accelerate coating drying, thereby efficiently completing air purification and coating drying during the spraying process and improving the overall efficiency of furniture manufacturing.

[0012] 2. This air purification structure for low-pollution furniture manufacturing, through a U-shaped second pipe and a continuous M-shaped third pipe, combined with the hot air guiding function of the air outlet hood, makes air circulation more efficient and hot air is evenly distributed in the coating area, thereby improving the air circulation rate and drying quality. At the same time, the improved pipe structure maximizes the air purification and drying rate, ensuring the optimization of the overall performance of the equipment.

[0013] 3. This air purification structure for low-pollution furniture manufacturing uses activated carbon to adsorb VOCs and combines this with the color change of bromophenol blue acid-base indicator to monitor the status of activated carbon in real time. The transparent installation section design makes it easy to observe. When the activated carbon reaches saturation, the indicator color change indicates that it can be replaced in time, ensuring the air purification effect of the equipment and guaranteeing the sustainability of operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the body in this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the air outlet shroud in this utility model;

[0017] Figure 4 This is a schematic diagram showing the disassembled structure of the air outlet cover and the mounting plate in this utility model;

[0018] Figure 5 This is a schematic diagram of the connection structure between the first tube and the second tube in this utility model;

[0019] Figure 6 This is a schematic diagram showing the disassembled structure of the mounting section and the cover plate in this utility model.

[0020] In the diagram: 1. Body; 2. Fan; 3. Inlet duct; 31. First duct; 311. Mounting section; 312. Cover plate; 32. Second duct; 33. Third duct; 4. Outlet duct; 41. Outlet hood; 42. Mounting plate; 43. Outlet hole; 44. Outlet nozzle; 5. Activated carbon; 6. Heating unit; 61. Electric heating wire; 62. Control structure. Detailed Implementation

[0021] 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.

[0022] Example 1:

[0023] Please see Figure 1-6 This embodiment provides an air purification structure for low-pollution furniture manufacturing, comprising a purification structure mounted on a body 1. The purification structure is disposed within the body 1, corresponding to a spraying component. The purification structure includes a fan 2, an air inlet pipe 3, an air outlet pipe 4, activated carbon 5, and a heating unit 6. The fan 2 is mounted on the body 1, the air inlet pipe 3 is disposed at the air inlet end of the fan 2, and the air outlet pipe 4 is disposed at the air outlet end of the fan 2. Both the air outlet pipe 4 and the air inlet pipe 3 are disposed within the body 1 and are arranged vertically. Both the air outlet pipe 4 and the air inlet pipe 3 communicate with the internal space of the body 1. The activated carbon 5 is disposed on the air inlet pipe 3, and the heating unit 6 is disposed below the air outlet pipe 4.

[0024] During application, when furniture boards are placed inside the machine body 1, the transmission component inside the machine body 1 transports the furniture boards, and the spraying component sprays a coating onto the furniture boards. After the coating is formed on the furniture boards, the fan 2 operates, discharging air into the machine body 1 through the air outlet duct 4 and drawing air from the machine body 1 through the air inlet duct 3. The combination of air outlet duct 4 and air inlet duct 3 enables air circulation within the machine body 1. As the air within the machine body 1 circulates, the VOCs gas generated during the furniture board spraying process also circulates synchronously. When the VOCs gas circulates through the activated carbon 5, it is absorbed by the activated carbon 5. The system purifies the VOCs generated during the spraying of furniture boards. Simultaneously, as the air circulates within the machine body 1, the heating unit 6 operates synchronously. After the heating unit 6 provides heat, it raises the temperature of the air inside the machine body 1, creating hot air. Through air circulation and the combined effect of the hot air, the coating sprayed on the furniture boards can be dried while the VOCs are being purified. By purifying the VOCs through the aforementioned air circulation method, and supplemented by the hot air generated by the heating unit 6, the air can be purified and the coating dried simultaneously during the spraying process of the furniture boards, thereby improving furniture manufacturing efficiency.

[0025] It is important to know that although low-pollution furniture produces less pollution during its production, VOCs (volatile organic compounds) are still generated when the furniture boards are sprayed. If workers are exposed to this environment for a long time, VOCs can cause harm to the human body.

[0026] Example 2:

[0027] The basic content is the same as in Example 1, except that:

[0028] Please see Figure 1-4 In this embodiment, the end of the air outlet pipe 4 away from the fan 2 is provided with an air outlet hood 41 located inside the body 1. The heating unit 6 is disposed inside the air outlet hood 41. The heating unit 6 includes an electric heating wire 61 and a control structure 62. The electric heating wire 61 is disposed inside the air outlet hood 41, and the control structure 62 is disposed inside the air outlet hood 41. The control structure 62 and the spraying assembly are electrically connected to the fan 2.

[0029] In application, when the fan 2 blows air into the body 1 through the air outlet duct 4, the control structure 62 controls the electric heating wire 61 to work and supply heat, so that the fan 2 blows hot air into the body 1, forming hot air inside the body 1, thereby achieving the drying of the coating. When the fan 2 blows hot air into the body 1, the air outlet hood 41 can guide the blown hot air, so that the hot air can be evenly directed to the coating on the furniture board, thereby improving the drying efficiency.

[0030] It should be noted that when the machine body 1 is working, the fan 2 and the control structure 62 will operate synchronously with the spraying assembly. The control circuits of the fan 2, the control structure 62 and the spraying assembly are well known to those skilled in the art, and will not be described in this embodiment.

[0031] In one specific embodiment, please refer to Figure 4 In this embodiment, an installation plate 42 is fixed inside the air outlet cover 41, and the installation plate 42 is located below the electric heating wire 61. A plurality of air outlet holes 43 are equally spaced on the installation plate 42. An air outlet nozzle 44 is fixed on the bottom surface of the installation plate 42 corresponding to the air outlet hole 43. The air outlet nozzle 44 is connected to the internal space of the air outlet cover 41 through the air outlet hole 43. The cross-section of the air outlet nozzle 44 is conical, and the internal diameter of the air outlet nozzle 44 decreases from top to bottom.

[0032] In application, after the air from the blower 2 is discharged into the air hood 41 through the air outlet pipe 4, it will pass through the air outlet hole 43 and the air outlet nozzle 44 before being blown into the machine body 1. When the air outlet nozzle 44 blows out, because its air outlet is small, the wind speed of the blown air is increased and the airflow is faster. Therefore, the air circulation rate inside the machine body 1 is faster, thereby improving the drying rate of the coating on the furniture board and the purification rate of VOCs gas. At the same time, the small air outlet of the air outlet nozzle 44 can also increase the distance the air travels when it is blown out, so that the heat carried by the blown air can be used more for drying the coating of the furniture board, avoiding the heat loss during the journey and affecting the drying rate.

[0033] Example 3:

[0034] The basic content is the same as in Example 1, except that:

[0035] Please see Figure 5-6 In this embodiment, the air inlet pipe 3 includes a first pipe 31, a second pipe 32 and a third pipe 33 connected in sequence. The first pipe 31 is connected to the air inlet end of the fan 2. The activated carbon 5 is disposed on the first pipe 31. The third pipe 33 is connected to the internal space of the body 1. The second pipe 32 is a U-shaped pipe and the third pipe 33 is a continuous M-shaped pipe.

[0036] It should be noted that when the fan 2 draws air from the body 1 through the air inlet pipe 3, the continuous M-shaped third pipe 33 can effectively draw air from the body 1, thereby maximizing the air circulation rate and thus improving the drying and air purification rate.

[0037] Specifically, the continuous M-shaped third tube 33 can form multiple air delivery channels on the body 1, thereby increasing the air circulation rate.

[0038] Furthermore, an installation section 311 is formed on the first tube 31, and a cover plate 312 is provided on the installation section 311. The cover plate 312 is snapped into the installation section 311, and the activated carbon 5 is disposed inside the installation section 311.

[0039] Understandably, the activated carbon 5 inside the installation section 311 can be easily replaced periodically by the cover plate 312 that is snapped onto the installation section 311 to ensure the air purification effect. The cover plate 312 on the installation section 311 can maintain a sealing effect through the sealing colloid.

[0040] Furthermore, the mounting section 311 is made of a transparent material, and the activated carbon 5 is provided with a bromophenol blue acid-base indicator layer.

[0041] It should be noted that after activated carbon 5 reaches its limit in absorbing VOCs, it will change color. Once the color change is observed through the transparent installation section 311, activated carbon 5 can be replaced in time.

[0042] It is important to know that after the bromophenol blue acid-base indicator layer reacts with VOCs, it will turn blue or yellow.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An air purification structure for low pollution furniture making, comprising a purification structure provided on a machine body (1), characterized in that: The purification structure corresponding to the spraying assembly is arranged in the machine body (1), and the purification structure comprises a fan (2), an air inlet pipe (3), an air outlet pipe (4), activated carbon (5) and a heating unit (6). The fan (2) is arranged on the machine body (1), the air inlet pipe (3) is arranged at the air inlet end of the fan (2), the air outlet pipe (4) is arranged at the air outlet end of the fan (2), the air outlet pipe (4) and the air inlet pipe (3) are arranged in the machine body (1) and are distributed in an upper and lower manner, the air outlet pipe (4) and the air inlet pipe (3) are in communication with the internal space of the machine body (1), the activated carbon (5) is arranged on the air inlet pipe (3), and the heating unit (6) is arranged below the air outlet pipe (4).

2. An air purification structure for low-pollution furniture making according to claim 1, characterized in that: One end of the air outlet pipe (4) away from the fan (2) is provided with an air outlet cover (41) arranged in the machine body (1), the heating unit (6) is arranged in the air outlet cover (41), the heating unit (6) comprises an electric heating wire (61) and a control structure (62), the electric heating wire (61) is arranged in the air outlet cover (41), and the control structure (62) is arranged in the air outlet cover (41). The control structure (62), the spraying assembly and the fan (2) are electrically connected.

3. An air purification structure for low pollution furniture making as claimed in claim 1, wherein: The air inlet pipe (3) comprises a first pipe (31), a second pipe (32) and a third pipe (33) which are sequentially communicated, the first pipe (31) is connected with the air inlet end of the fan (2), the activated carbon (5) is arranged on the first pipe (31), the third pipe (33) is in communication with the internal space of the machine body (1), the second pipe (32) is a U-shaped pipe, and the third pipe (33) is a continuous M-shaped pipe.

4. An air purification structure for low-pollution furniture making according to claim 3, characterized in that: The first pipe (31) is provided with a mounting section (311), the mounting section (311) is provided with a cover plate (312), the cover plate (312) is clamped with the mounting section (311), and the activated carbon (5) is arranged in the mounting section (311).

5. An air purification structure for low-pollution furniture making according to claim 4, characterized in that: The mounting section (311) is made of transparent material, and the activated carbon (5) is provided with a bromophenol blue acid-base indicator layer.