Air knife with adjustable air speed

Abstract

The utility model discloses an air knife capable of adjusting air speed, which comprises a hollow air knife shell, one end of the air knife shell is provided with an air inlet, the other end of the air knife shell is provided with an air outlet, and the air knife is characterized in that an air outlet cavity is arranged above the air outlet, an adjusting cone valve is arranged above the air outlet cavity, and the adjusting cone valve is arranged above the air outlet cavity. The adjusting cone valve is installed on the air knife shell through an adjusting assembly, and the adjusting assembly adjusts the air outlet volume of the air outlet by adjusting the distance between the adjusting cone valve and the air outlet cavity. The air knife does not depend on a traditional screw adjusting mode any more, the size of the air port entering the air outlet cavity is changed by adjusting the height of the adjusting cone valve through the adjusting assembly and changing the distance between the adjusting cone valve and the air outlet cavity, and therefore the air volume entering the air outlet cavity is controlled, and the air outlet volume of the air outlet is adjusted. Therefore, the adjustment of the air outlet volume becomes simple and visual, and the operation convenience is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind knives, and more specifically to a wind knife with adjustable wind speed. Background Art

[0002] Air knives are widely used in the industrial field for cleaning, dust removal, static elimination and other operations, such as blowing away dust and moisture on planes such as steel plates and aluminum alloy profiles, blowing away moisture on the surface of beverage bottles, packaging cans and other bottles, blowing away impurities and dust on the surface of products, residual liquid, moisture on the outer packaging, and cleaning conveyor belts, etc. After compressed air enters the air knife, it is blown out at high speed in a thin sheet airflow with a thickness of only 0.05 mm. Under the condition of compressed air supply, the air knife can perfectly meet these applications.

[0003] The existing wind knife usually has a hollow blade body, one side of the blade body is provided with an air inlet, and the other side is provided with an elongated air outlet. The air is blown in through the air inlet by a blower, and the air pressure suddenly increases through the elongated air outlet, and the air is ejected from the air outlet to form a wind knife. With the development of science and technology, the wind knife has also undergone major technical improvements. The assembly and debugging of the existing wind knife is relatively cumbersome. The size of the air outlet directly affects the processing and size of the wind knife itself, and the production requirements are extremely strict. Moreover, due to the different sizes and shapes of the air outlet, each specification of the wind knife needs to be designed and processed separately, resulting in high production costs of the wind knife, which also limits the production efficiency of the wind knife.

[0004] For example, a Chinese patent with announcement number CN212778530U discloses an adjustable wind knife, which arranges two inclined walls on the main body of the wind knife so that two blades installed thereon are naturally closed to form an air outlet, and an adjusting screw is arranged between one end of the blade and the inclined wall. The angle of the blade can be adjusted by adjusting the screw, thereby changing the size of the air outlet and adjusting the air volume.

[0005] However, the above adjustable air knife needs to adjust the size of the air outlet by adjusting the screws between the blade and the inclined wall to adjust the air volume. When adjusting the size of the air outlet, the user needs to adjust the screws between the blade and the inclined wall one by one, which is not only cumbersome but also inefficient.

[0006] The above problems are worth solving. Utility Model Content

[0007] In order to overcome the problem that in the existing adjustable wind knife, when adjusting the size of the air outlet, the user needs to adjust the screws between the blade and the inclined wall one by one, which is not only cumbersome but also inefficient, the utility model provides a wind knife with adjustable wind speed.

[0008] The technical solution of the utility model is as follows:

[0009] A wind knife with adjustable wind speed comprises a hollow wind knife shell, one end of the wind knife shell is provided with an air inlet, the other end of the wind knife shell is provided with an air outlet, an air outlet cavity is provided above the air outlet, an adjusting cone valve is provided above the air outlet cavity, the adjusting cone valve is installed on the wind knife shell through an adjusting component, and the adjusting component adjusts the air volume of the air outlet by adjusting the distance between the adjusting cone valve and the air outlet cavity.

[0010] According to the utility model of the above scheme, the air inlet is connected to an air inlet pipe, the air inlet pipe is connected to an air balancing box, and the air balancing box is arranged inside the air knife housing.

[0011] According to the utility model of the above scheme, the air outlet surface of the air balancing box is provided with air balancing holes.

[0012] According to the utility model of the above scheme, the adjustment assembly includes a connecting rod and an adjustment nut arranged above the air knife housing, one end of the connecting rod is threadedly connected to the adjustment nut, and the other end of the connecting rod is connected to the adjustment cone valve.

[0013] According to the utility model of the above scheme, the adjustment assembly also includes a sleeve arranged below the wind knife housing, and the connecting rod passes through the sleeve and is connected to the adjustment nut above the wind knife housing. The sleeve is used to limit the shaking of the connecting rod.

[0014] According to the utility model of the above solution, the outer side wall of the connecting rod is provided with a groove, and a sealing ring is provided at the groove.

[0015] According to the above-mentioned solution of the utility model, a spring is provided between the sleeve and the regulating cone valve.

[0016] According to the utility model of the above solution, the cross section of the bottom of the regulating cone valve is in the shape of an inverted triangle.

[0017] According to the utility model of the above scheme, the regulating components are in two groups, and the two groups of regulating components are respectively arranged at the two ends of the regulating cone valve.

[0018] According to the utility model of the above solution, the air knife housing includes a housing body and side sealing plates arranged on both sides of the housing body, and the housing body is integrally formed.

[0019] The utility model according to the above scheme has the beneficial effect that the wind knife of the utility model no longer relies on the traditional screw adjustment method, but adjusts the height of the regulating cone valve by adjusting the adjustment component, changes the distance between the regulating cone valve and the air outlet cavity to change the size of the air outlet entering the air outlet cavity, thereby controlling the air volume entering the air outlet cavity, and realizing the adjustment of the air volume of the air outlet, making the adjustment of the air volume simple and intuitive, greatly improving the convenience of operation. Not only does it simplify the adjustment process, improve the accuracy and efficiency of the adjustment, but it also provides great convenience for large-scale production or continuous use, and the production efficiency can be significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0022] Figure 3 It is a cross-sectional view of the utility model.

[0023] In the drawings, the reference numerals are as follows:

[0024] 1. Wind knife housing; 101. Housing body; 102. Side sealing plate; 12. Air outlet; 13. Air outlet cavity; 14. Air inlet pipe; 15. Air equalization box;

[0025] 2. Adjust the cone valve;

[0026] 3. Adjustment assembly; 31. Connecting rod; 311. Groove; 312. Sealing ring; 32. Adjustment nut; 33. Sleeve; 34. Spring. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0028] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present utility model are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices. Terms such as "setting" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "bottom", etc. are based on the directions or positions shown in the drawings, which are only for the convenience of description and cannot be understood as limitations on the present technical solution.

[0029] like Figure 1-Figure 3 As shown, this embodiment provides an adjustable wind speed wind knife, and its design concept is to simplify the adjustment process and improve the accuracy and efficiency of the adjustment. The wind knife of this embodiment no longer relies on the traditional screw adjustment method, but adjusts the height of the adjusting cone valve 2 through the adjustment component 3, changes the distance between the adjusting cone valve 2 and the air outlet cavity 13 to change the size of the air outlet entering the air outlet cavity 13, thereby controlling the air volume entering the air outlet cavity 13 and realizing the adjustment of the air volume of the air outlet 12. The adjustment of the air volume becomes simple and intuitive, greatly improving the convenience of operation.

[0030] Specifically, a wind knife with adjustable wind speed includes a hollow wind knife shell 1, an air inlet is provided at one end of the wind knife shell 1, an air outlet 12 is provided at the other end of the wind knife shell 1, an air outlet cavity 13 is provided above the air outlet 12 for further adjusting the wind direction and air volume, an adjusting cone valve 2 is provided above the air outlet cavity 13 for finely controlling the air volume entering the air outlet cavity 13, the adjusting cone valve 2 is installed on the wind knife shell 1 through an adjusting component 3, and the adjusting component 3 adjusts the air volume of the air outlet 12 by adjusting the distance between the adjusting cone valve 2 and the air outlet cavity 13. The adjusting component 3 not only enables the adjusting cone valve 2 to be flexibly installed on the wind knife shell 1, but also realizes precise control of the air volume of the air outlet 12 by adjusting the distance between the adjusting cone valve 2 and the air outlet cavity 13.

[0031] The wind knife with adjustable wind speed in this embodiment not only simplifies the adjustment process and improves the accuracy and efficiency of the adjustment, but also provides great convenience for large-scale production or continuous use, and the production efficiency can be significantly improved.

[0032] like Figure 2As shown, in one embodiment, the air inlet is connected to an air inlet pipe 14, the air inlet pipe 14 is connected to an air balancing box 15, and the air balancing box 15 is arranged inside the wind knife housing 1. The air inlet is connected to the air balancing box 15 through an air inlet pipe 14, so that the incoming wind can be evenly processed in the air balancing box 15, ensuring that the air volume entering the wind knife is more evenly distributed. The air balancing box 15 is specially arranged inside the wind knife housing 1, which plays a role in further adjusting the airflow. Preferably, the air outlet surface of the air balancing box 15 is provided with air balancing holes, which not only help to further even the airflow, but also play a certain buffering role, reduce the fluctuation of wind pressure, and ensure that the output air volume is more stable.

[0033] like Figure 2 and Figure 3 As shown, in one embodiment, the adjustment assembly 3 includes a connecting rod 31 and an adjustment nut 32 disposed above the wind knife housing 1, and one end of the connecting rod 31 is threadedly connected to the adjustment nut 32 through a thread, so that the connecting rod 31 can rotate around the adjustment nut 32. The other end of the connecting rod 31 is connected to the regulating cone valve 2, so that the regulating cone valve 2 can rise and fall with the rotation of the connecting rod 31. In specific use, the connecting rod 31 is rotated by rotating the adjusting nut 32, thereby driving the regulating cone valve 2 to rise or fall. In order to prevent the regulating cone valve 2 from rising excessively during the adjustment process, resulting in contact with the air outlet panel of the wind box 15, causing unnecessary friction or damage, a protrusion is specially provided at the lower end of the connecting rod 31. The design of this protrusion limits the rising range of the connecting rod 31, ensuring that the regulating cone valve 2 always remains within a safe and effective adjustment range.

[0034] like Figure 3 As shown, in one embodiment, in order to increase the stability and accuracy of the adjustment, the adjustment component 3 also includes a sleeve 33 arranged under the wind knife housing 1. The sleeve 33 not only limits the moving direction of the connecting rod 31, ensuring that the connecting rod 31 can only move up and down, thereby preventing the adjustment cone valve 2 from shaking, but also can further finely control the air output.

[0035] Specifically, one end of the connecting rod 31 passes through the sleeve 33 and is connected to the adjusting nut 32 above the wind knife housing 1. The sleeve 33 fits tightly with the wind knife housing 1 to form a stable supporting structure to prevent the connecting rod 31 from moving sideways or shaking during the adjustment process, thereby increasing the accuracy and stability of the air volume adjustment of the air outlet 12, so that the air volume of the air outlet 12 can be more finely controlled.

[0036] In one embodiment, in order to further adjust the sealing performance and stability of the wind knife, a groove 311 is provided on the outer wall of the connecting rod 31, and a sealing ring 312 is installed at the groove 311 to ensure that the interior of the wind knife housing 1 is in a sealed state, thereby preventing air leakage at the adjustment component 3, which not only enhances the sealing performance of the wind knife, but also further improves the wind utilization efficiency and output stability.

[0037] Preferably, a spring 34 is provided between the sleeve 33 and the regulating cone valve 2. The elastic setting increases the stability and buffering of the regulating cone valve 2, making the regulating cone valve 2 smoother and more stable during the lifting process. At the same time, the spring 34 can also absorb some vibration and impact, reduce the friction and wear between the regulating cone valve 2 and the sleeve 33, and extend the service life of the air knife.

[0038] Preferably, the cross section of the bottom of the regulating cone valve 2 is in the shape of an inverted triangle. The shape of the inverted triangle fits the outlet of the air outlet cavity 13 more closely, so that the air outlet volume can be precisely controlled.

[0039] In one embodiment, there are two groups of adjustment components 3 , and the two groups of adjustment components 3 are respectively arranged at both ends of the adjustment cone valve 2 , and the adjustment components 3 are arranged at both ends of the air knife housing 1 , and the air box 15 is located between the two adjustment components 3 .

[0040] In one embodiment, the air knife housing 1 includes a housing body 101 and side sealing plates 102 disposed on both sides of the housing body 101 , and the housing body 101 is integrally formed.

[0041] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

[0042] The above is an exemplary description of the utility model patent in conjunction with the accompanying drawings. It is obvious that the implementation of the utility model patent is not limited to the above-mentioned method. As long as various improvements are made by adopting the method concept and technical solution of the utility model patent, or the concept and technical solution of the utility model patent are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A wind knife with adjustable wind speed, comprising a hollow wind knife shell, one end of which is provided with an air inlet, and the other end of which is provided with an air outlet, characterized in that: An air outlet cavity is provided above the air outlet, and an adjusting cone valve is provided above the air outlet cavity. The adjusting cone valve is installed on the wind knife housing through an adjusting component. The adjusting component adjusts the air volume of the air outlet by adjusting the distance between the adjusting cone valve and the air outlet cavity.

2. The wind knife with adjustable wind speed according to claim 1, characterized in that: The air inlet is connected to an air inlet pipe, the air inlet pipe is connected to an air distribution box, and the air distribution box is arranged inside the air knife housing.

3. The wind knife with adjustable wind speed according to claim 2, characterized in that: The air outlet surface of the air balancing box is provided with air balancing holes.

4. The wind knife with adjustable wind speed according to any one of claims 1 to 3, characterized in that: The regulating assembly comprises a connecting rod and an regulating nut arranged above the air knife housing, one end of the connecting rod is threadedly connected to the regulating nut, and the other end of the connecting rod is connected to the regulating cone valve.

5. The wind knife with adjustable wind speed according to claim 4, characterized in that: The adjustment assembly also includes a sleeve arranged below the wind knife housing. The connecting rod passes through the sleeve and is connected to the adjustment nut above the wind knife housing. The sleeve is used to limit the shaking of the connecting rod.

6. The wind knife with adjustable wind speed according to claim 5, characterized in that: The outer side wall of the connecting rod is provided with a groove, and a sealing ring is provided at the groove.

7. The wind knife with adjustable wind speed according to claim 5, characterized in that: A spring is arranged between the sleeve and the regulating cone valve.

8. The wind knife with adjustable wind speed according to claim 1, characterized in that: The cross section of the bottom of the regulating cone valve is in the shape of an inverted triangle.

9. The wind knife with adjustable wind speed according to claim 1, characterized in that: The regulating components are in two groups, and the two groups of regulating components are respectively arranged at two ends of the regulating cone valve.

10. The wind knife with adjustable wind speed according to claim 1, characterized in that: The air knife housing comprises a housing body and side sealing plates arranged on both sides of the housing body, and the housing body is integrally formed.

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