Multi-port air knife

Abstract

The utility model discloses a kind of wind knives of multiple air inlets, including wind blade front cover and wind blade back cover, the air cavity is set in the wind blade back cover, U-shaped gasket is set between wind blade front cover and wind blade back cover, U-shaped gasket forms gap in wind blade front cover and wind blade back cover, this gap is gas outlet, gas outlet and air cavity are interconnected, U-shaped gasket is set between wind blade front cover and wind blade back cover, gap (gas outlet) is formed between the two, also play sealing effect simultaneously. The design of fixed bolt through U-shaped gasket, U-shaped gasket can be further tightly pressed between wind blade front cover and wind blade back cover, the sealing effect of U-shaped gasket is enhanced, effectively prevent gas from the connecting place of wind blade front cover and wind blade back cover leakage, and when producing, wind blade back cover and wind blade front cover can also form neat cutting surface, do not have to be special-shaped piece for air outlet manufacturing, thereby reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of air knife technology, specifically a multi-vent air knife. Background Technology

[0002] Traditional air knives typically employ a single air inlet design with a fixed inlet position, making it impossible to flexibly adjust based on the installation location, supply pressure, and flow rate of the air supply equipment. If the location of the air supply equipment does not match the air knife's inlet, long-distance air supply pipelines must be laid, increasing installation costs and causing pressure loss during gas transmission, affecting the final air output. Furthermore, some traditional air knives require the front or rear cover to be machined into irregular shapes to achieve specific air output effects, increasing processing difficulty and production costs, and reducing component versatility and interchangeability. When the air knife is damaged and parts need to be replaced, poor adaptability further increases maintenance costs. Therefore, those skilled in the art have provided a multi-inlet air knife to solve the problems mentioned in the background art. Utility Model Content

[0003] The purpose of this invention is to provide a multi-vent air knife to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A multi-vent air knife includes a front cover and a rear cover. An air filling chamber is provided inside the rear cover. A U-shaped gasket is provided between the front cover and the rear cover. The U-shaped gasket forms a gap between the front cover and the rear cover, which is an air outlet. The air outlet is connected to the air filling chamber.

[0006] Furthermore, the upper surface of the wind blade rear cover is provided with an upper threaded air inlet, and the two ends of the U-shaped gasket are respectively provided with a first side threaded air inlet and a second side threaded air inlet, and the upper threaded air inlet, the first side threaded air inlet and the second side threaded air inlet are all connected to the inflation chamber.

[0007] Furthermore, a fixing bolt is provided through the front cover of the wind blade, and the front cover of the wind blade is threadedly connected to the rear cover of the wind blade through this fixing bolt.

[0008] Furthermore, the fixing bolt also passes through the U-shaped washer.

[0009] By adopting the above technical solution

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. A U-shaped gasket is placed between the front and rear covers of the air blade, creating a gap (air outlet) while also providing a seal. The design of the fixing bolt passing through the U-shaped gasket further tightens the gasket between the front and rear covers, enhancing its sealing effect and effectively preventing gas leakage from the connection between the front and rear covers. Furthermore, during production, the front and rear covers can be made to have neat cross-sections, eliminating the need for irregularly shaped parts for the air outlet and thus reducing production costs.

[0012] 2. The upper threaded air inlet on the upper surface of the wind blade cover, as well as the symmetrical first and second side threaded air inlets at both ends of the U-shaped gasket, are all connected to the inflation chamber, forming a multi-directional air intake structure. This design breaks the limitations of traditional single-inlet air knife, allowing users to flexibly choose between a single air inlet or multiple air inlets simultaneously, based on the actual air supply location, air supply pressure, and gas flow requirements in production.

[0013] 3. The air filling chamber inside the rear cover of the air blade is interconnected with the air outlet formed by the U-shaped gasket between the front cover and the rear cover of the air blade, creating a smooth gas transmission channel. The air filling chamber can temporarily store and stabilize the gas, ensuring that the incoming gas can be discharged stably and evenly through the air outlet, avoiding uneven gas discharge caused by gas pressure fluctuations. This structural design allows the air knife to form a continuous and uniform airflow surface in drying, dust removal, and cooling operations, covering a wider range of workpieces to be processed, greatly improving work efficiency and processing effect, and is especially suitable for industrial production processes with high requirements for airflow uniformity. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a multi-vent air knife;

[0015] Figure 2 This is a frontal cross-sectional view of a multi-vent air knife.

[0016] Figure 3 This is a front view schematic diagram of a multi-vent air knife;

[0017] Figure 4 This is a side view of a multi-vent air knife structure.

[0018] Figure 5 In this utility model Figure 4 A magnified view of the structure at point A;

[0019] In the diagram: 1. Fixing bolt; 2. Front cover of the wind blade; 3. U-shaped gasket; 4. Rear cover of the wind blade; 5. Inflation chamber; 6. First side threaded air inlet; 7. Upper threaded air inlet; 8. Second side threaded air inlet; 9. Air outlet. Detailed Implementation

[0020] To make the technical means, creative features, achieved objectives and effects of this utility model easier to understand, the present utility model is further described below in conjunction with specific embodiments. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," 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. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0021] Please see Figures 1-5 This utility model provides an embodiment of a multi-vent air knife, including a front cover 2 and a rear cover 4. The rear cover 4 has an inflation chamber 5. A U-shaped gasket 3 is positioned between the front cover 2 and the rear cover 4, forming a gap that serves as an air outlet. This air outlet communicates with the inflation chamber 5. The upper surface of the rear cover 4 has an upper threaded air inlet 7. The U-shaped gasket 3 has symmetrical first side threaded air inlets 6 and second side threaded air inlets 8 at both ends. All three air inlets communicate with the inflation chamber 5. The front cover 2... A fixing bolt 1 is installed through the air blade, and the front cover 2 of the air blade is threadedly connected to the rear cover 4 of the air blade through this fixing bolt 1. The fixing bolt 1 also passes through the U-shaped gasket 3. The front cover 2 and the rear cover 4 of the air blade are made of aluminum alloy. Aluminum alloy has the characteristics of being lightweight, high-strength, and corrosion-resistant, which can meet the long-term use requirements in industrial scenarios. The rear cover 4 has a reserved cavity inside, which is the inflation chamber 5 for temporary gas storage and pressure stabilization. The volume of the inflation chamber 5 is determined according to the design air volume of the air blade. The overall size of the U-shaped gasket 3 is adapted to the edge size of the front cover 2 and the rear cover 4 of the air blade, and its U-shaped opening faces the same direction as the air outlet formed after the front cover 2 and the rear cover 4 of the air blade are assembled. The thickness of the U-shaped gasket 3 is determined according to the preset gap of the air outlet. When the front cover 2 and the rear cover 4 of the air blade are connected by the fixing bolt 1, the U-shaped gasket 3 can form a 2mm gap between them, which is the air outlet. Meanwhile, a first side threaded air inlet 6 and a second side threaded air inlet 8 with the same specifications as the upper threaded air inlet 7 are respectively opened at both ends of the U-shaped gasket 3 to ensure that the gas can enter the inflation chamber 5 evenly during air intake.

[0022] When the multi-outlet air knife is working, the air inlet is first selected according to the air supply location, pressure and flow requirements in production. The gas enters the inflation chamber 5 of the air knife rear cover 4 through the selected air inlet. The inflation chamber 5 temporarily stores the gas and buffers pressure fluctuations to achieve pressure stabilization. After pressure stabilization, the gas is evenly distributed along the inflation chamber 5 and then flows to the 2mm air outlet formed by the U-shaped gasket 3 between the air knife front cover 2 and the rear cover. At this time, the U-shaped gasket 3 plays a sealing role. The fixing bolt 1 passes through the gasket 3 to press it tightly to prevent gas leakage from the cover connection and ensure that the gas is discharged from the air outlet. The gas is discharged from the air outlet at a flow rate of 15-20m / s, forming a continuous and uniform airflow surface that covers the workpiece to be processed. In scenarios such as drying, dust removal and cooling, the airflow surface acts efficiently on the workpiece, improving work efficiency and effect. It is suitable for production processes with high requirements for airflow uniformity, such as precision electronics and automotive parts.

[0023] The U-shaped gasket 3 is positioned between the front cover 2 and the rear cover 4 of the air blade, forming a gap (air outlet) while also providing a seal. The design of the fixing bolt 1 passing through the U-shaped gasket 3 further presses the U-shaped gasket 3 tightly between the front cover 2 and the rear cover 4 of the air blade, enhancing the sealing effect of the U-shaped gasket 3 and effectively preventing gas leakage from the connection between the front cover 2 and the rear cover 4 of the air blade. During production, the rear cover 4 and the front cover 2 of the air blade can also form a neat cross-section, eliminating the need to manufacture irregularly shaped parts for the air outlet, thereby reducing production costs. The upper threaded air inlet 7 on the upper surface of the rear cover 4 of the air blade, as well as the symmetrical first side threaded air inlet 6 and second side threaded air inlet 8 at both ends of the U-shaped gasket 3, are all connected to the inflation chamber 5, forming a multi-directional air intake structure. This design breaks through the limitations of traditional single-inlet air knife. Users can flexibly choose to use a single inlet or multiple inlets simultaneously, depending on the actual air supply location, pressure, and flow rate requirements in production. The air outlet formed by the U-shaped gasket 3 between the air knife rear cover 4 and the air knife front cover 2 and rear cover 4 is interconnected, creating a smooth gas transmission channel. The air filling chamber 5 can temporarily store and stabilize the gas, ensuring that the incoming gas can be discharged stably and evenly through the outlet, avoiding uneven gas discharge caused by gas pressure fluctuations. This structural design allows the air knife to form a continuous and uniform airflow surface in drying, dust removal, and cooling operations, covering a wider range of workpieces to be processed, greatly improving work efficiency and processing effect. It is especially suitable for industrial production processes with high requirements for airflow uniformity.

[0024] This specification describes embodiments, but not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-port air-knife comprising an air-knife front cover (2) and an air-knife rear cover (4), characterized in that, An air chamber (5) is provided inside the rear cover (4) of the wind blade. A U-shaped gasket (3) is provided between the front cover (2) of the wind blade and the rear cover (4) of the wind blade. The U-shaped gasket (3) forms a gap between the front cover (2) of the wind blade and the rear cover (4) of the wind blade. This gap is an air outlet, and the air outlet is connected to the air chamber (5).

2. A multi-slot air-knife according to claim 1, wherein, The upper surface of the wind blade rear cover (4) is provided with an upper threaded air inlet (7), and the two ends of the U-shaped gasket (3) are respectively provided with a first side threaded air inlet (6) and a second side threaded air inlet (8), and the upper threaded air inlet (7), the first side threaded air inlet (6) and the second side threaded air inlet (8) are all connected to the air filling chamber (5).

3. A multi-slot air-knife according to claim 2, wherein, A fixing bolt (1) is provided through the front cover (2) of the wind blade, and the front cover (2) of the wind blade is threadedly connected to the rear cover (4) of the wind blade through this fixing bolt (1).

4. A multi-slot air-knife according to claim 3, wherein, The fixing bolt (1) also passes through the U-shaped washer (3).

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