Ventilation device for powder spraying

Abstract

The utility model discloses a ventilation device for powder spraying, which comprises an operation table, an air suction cover positioned above the operation table and a fresh air box positioned below the operation table, the air suction cover is connected with a negative pressure pipe through a corrugated pipe, the negative pressure pipe is connected with a negative pressure fan, and the air suction cover is driven by a lifting driving mechanism to move up and down above the operation table. A plurality of fresh air openings are formed in the fresh air box, and the fresh air box is connected with a fresh air fan through a fresh air pipe. According to the ventilation device for powder spraying, redundant powder coating is sucked away as much as possible in the spraying process through the air suction cover capable of ascending and descending, flowing airflow is formed in combination with fresh air blown out of the fresh air box, overflow of the powder coating is further reduced, and the working environment in the powder spraying process is improved.

Description

Technical Field

[0001] This utility model belongs to the field of powder coating technology, specifically relating to a ventilation device for powder coating. Background Technology

[0002] In manual powder coating, the powder coating is applied to the workpiece surface by manually operating a spray gun. Under electrostatic attraction, the powder adheres evenly to the workpiece surface, forming a powdery coating. This powdery coating is then baked at high temperature to level and cure, resulting in a final coating with varying effects (depending on the type of powder coating). Powder coating offers superior mechanical strength, adhesion, corrosion resistance, and aging resistance compared to spray painting. However, manual powder coating generates a large amount of powder. Even with dust masks, the floating powder can still pose a health risk. Furthermore, powder can easily spill into other parts of the workshop, impacting the factory environment. Utility Model Content

[0003] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a ventilation device for powder coating, including an operating table, an air suction hood located above the operating table, and a fresh air box located below the operating table. The air suction hood is connected to a negative pressure pipe through a corrugated pipe, and the negative pressure pipe is connected to a negative pressure fan. The air suction hood is driven to move up and down above the operating table by a lifting drive mechanism. The fresh air box is provided with several fresh air inlets, and the fresh air box is connected to a fresh air fan through a fresh air pipe.

[0004] As a preferred embodiment of the above technical solution, the back and sides of the operating table are respectively provided with enclosures.

[0005] As a preferred embodiment of the above technical solution, sliders are fixedly connected to the four sides of the air intake hood, and the sliders are slidably mounted on slide rails, which are fixedly connected to the corresponding enclosure panels.

[0006] As a preferred embodiment of the above technical solution, the lifting drive mechanism includes a lifting cylinder or an electric push rod, the lifting cylinder or electric push rod is fixedly connected to the operating table, and the working shaft of the lifting cylinder or the working shaft of the electric push rod is fixedly connected to the air intake hood.

[0007] As a preferred embodiment of the above technical solution, the number of lifting drive mechanisms is two, and the two lifting drive mechanisms are respectively located on both sides of the air intake hood.

[0008] As a preferred embodiment of the above technical solution, the lifting cylinder or electric push rod is fitted with a flexible isolation cover.

[0009] As a preferred embodiment of the above technical solution, the fresh air inlets on the fresh air box are arranged sequentially on the front of the fresh air box, an adjustment plate is provided inside the fresh air box, and a socket for inserting the adjustment plate is provided on one side of the fresh air box, with the adjustment plate covering the fresh air inlets.

[0010] The beneficial effects of this utility model are: the ventilation device for powder coating of this utility model uses a liftable suction hood to suck away as much excess powder coating as possible during the spraying process, and combines it with the fresh air blown out by the fresh air box to form a flowing airflow, further reducing the overflow of dust coating and improving the working environment of the powder coating process. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0012] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0013] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0015] like Figure 1As shown, the ventilation device for powder coating includes an operating table 1, an air suction hood 2 located above the operating table 1, and a fresh air box 3 located below the operating table 1. The air suction hood 2 is connected to a negative pressure pipe via a corrugated pipe 4, and the negative pressure pipe is connected to a negative pressure fan. The air suction hood 2 is driven by a lifting drive mechanism to move up and down above the operating table 1. The fresh air box 3 is equipped with several fresh air inlets 5, and the fresh air box 3 is connected to a fresh air fan via a fresh air duct. The powder coating operation of the casting is carried out on the operating table 1. During powder coating, the air suction hood 2 descends to remove as much dust and paint as possible from the surface of the casting. Fresh air is blown out from the fresh air inlets 5 of the fresh air box 3, forming air convection between the fresh air inlets 5 and the air suction hood 2. The fresh air inlets 5 are located below the operating table 1, preventing dust and paint from entering the fresh air box 3.

[0016] Furthermore, the back and sides of the operating table 1 are respectively provided with enclosures 6. The enclosures 6 reduce the possibility of dust drifting into the workshop, concentrate the dust sprayed from the spray gun that does not adhere to the surface of the casting, and facilitate the suction hood 2 to suck away the floating dust coating.

[0017] Furthermore, sliders are fixedly connected to the four sides of the suction hood 2, and the sliders are slidably mounted on the slide rails 7, which are fixedly connected to the corresponding enclosure plates 6. The cooperation between the sliders and the slide rails 7 improves the stability of the suction hood 2's up and down movement.

[0018] Furthermore, the lifting drive mechanism includes an electric push rod 8, which is fixedly connected to the operating platform 1, and its working shaft is fixedly connected to the suction hood 2. An infrared sensor for detecting whether there is an object on the operating platform 1 can be installed on one side of the platform 1. When no workpiece is placed on the platform 1, the suction hood 2 rises to its highest height, facilitating the placement of the workpiece. When a workpiece is placed on the platform 1, the suction hood 2 lowers to a certain height. The operator can then reach through the gap between the operating platform 1 and the suction hood 2 to operate the spray gun for spraying operations. This enables the automatic lifting and lowering of the suction hood 2.

[0019] Furthermore, there are two lifting drive mechanisms, which are located on both sides of the air intake hood 2.

[0020] Furthermore, the electric actuator 8 is fitted with a flexible protective cover 9. The flexible protective cover 9 encloses the electric actuator 8 to prevent dust from affecting its normal operation. The flexible protective cover 9 can be made of a film or fabric that does not affect the operation of the electric actuator 8.

[0021] Furthermore, the fresh air inlets 5 on the fresh air box 3 are arranged sequentially on the front of the fresh air box 3. An adjusting plate 10 is provided inside the fresh air box 3, and a socket 11 for inserting the adjusting plate 10 is provided on one side of the fresh air box 3. The adjusting plate 10 covers the fresh air inlets 5. Pulling the adjusting plate 10 adjusts the area and number of the fresh air inlets 5, thereby adjusting the volume of fresh air blown out. Painting operators can adjust this as needed to improve comfort.

[0022] It is worth mentioning that the technical features such as the lifting cylinder and electric push rod involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control method and spatial arrangement of these technical features can be adopted by conventional choices in the field, and should not be regarded as the inventive point of this utility model patent. This utility model patent will not be further elaborated in detail.

[0023] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experimentation on the basis of the prior art should be within the scope of protection defined by the claims.

Claims

1. A ventilation device for powder coating, characterized in that, It includes an operating table, an air intake hood located above the operating table, and a fresh air box located below the operating table. The air intake hood is connected to a negative pressure pipe via a corrugated pipe, and the negative pressure pipe is connected to a negative pressure fan. The air intake hood is driven to move up and down above the operating table by a lifting drive mechanism. The fresh air box is provided with several fresh air inlets, and the fresh air box is connected to a fresh air fan via a fresh air duct.

2. The ventilation device for powder coating as described in claim 1, characterized in that, The control panel is equipped with enclosures on its back and sides.

3. The ventilation device for powder coating as described in claim 2, characterized in that, The suction hood is fixedly connected to sliders on all four sides. The sliders are slidably mounted on slide rails, and the slide rails are fixedly connected to the corresponding enclosure panels.

4. The ventilation device for powder coating as described in claim 3, characterized in that, The lifting drive mechanism includes a lifting cylinder or an electric push rod, which is fixedly connected to the operating table, and the working shaft of the lifting cylinder or the working shaft of the electric push rod is fixedly connected to the air intake hood.

5. The ventilation device for powder coating as described in claim 4, characterized in that, There are two lifting drive mechanisms, which are located on both sides of the air intake hood.

6. The ventilation device for powder coating as described in claim 5, characterized in that, The lifting cylinder or electric push rod is covered with a flexible isolation cover.

7. The ventilation device for powder coating as described in claim 1, characterized in that, The fresh air inlets on the fresh air box are arranged sequentially on the front of the fresh air box. An adjustment plate is provided inside the fresh air box, and a socket for inserting the adjustment plate is provided on one side of the fresh air box. The adjustment plate covers the fresh air inlets.

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