A tin coating air volume adjustable air mixing knife

Abstract

The utility model provides a kind of air volume adjustable air mixing knife for tinning, belong to air knife technical field, including air knife upper die and its below air knife lower die;Between the air knife upper die and air knife lower die, ultra-thin sealing gasket is equipped;Air inlet is opened in the outer lateral wall of air knife lower die;Air cavity is opened in the bottom of air knife upper die and the top of air knife lower die respectively;Air outlet is equipped between the air knife upper die and air knife lower die, close to the inner side position of ultra-thin sealing gasket;Threaded hole is opened in the top of air knife lower die;And screw rod limiting hole is opened in the top of air knife upper die;The utility model is equipped with ultra-thin sealing gasket, under meeting different air volume demand, the size of air volume is adjusted by replacing ultra-thin sealing gasket of different thickness, realizes flexible air volume control, without replacing entire air knife, by and the height of equal high gasket of ultra-thin sealing gasket thickness adaptation, ultra-thin sealing gasket can be protected.

Description

Technical Field

[0001] This utility model belongs to the field of air knife technology, specifically relating to an air knife with adjustable airflow for tin coating. Background Technology

[0002] During the tinning process, the wire harnesses that need to be tinned will contain dust and moisture. These are usually removed by blowing with an air knife. Air knives have many applications in the industrial field, such as blowing away water and dust, removing impurities, dust, residual liquids, moisture from outer packaging, and cleaning conveyor belts. With a supply of compressed air, air knives can perfectly meet these applications.

[0003] Existing air knives are all manufactured through precision machining. Since the air outlet of the air knife is already shaped during machining, it is difficult to adjust the air volume of the air knife. In some usage environments, the air knife needs to be replaced, resulting in high operating costs.

[0004] Therefore, a tin-coating air-cooling knife with adjustable airflow is proposed. Summary of the Invention

[0005] This invention provides an air-cooling knife with adjustable airflow for tin coating, which aims to solve the problems mentioned above.

[0006] This utility model provides an adjustable airflow air knife for tin coating, comprising an upper air knife mold and a lower air knife mold below it; an ultra-thin sealing gasket disposed between the upper and lower air knife molds; an air inlet on the outer wall of the lower air knife mold; air cavities respectively disposed at the bottom of the upper air knife mold and the top of the lower air knife mold; an air outlet disposed between the upper and lower air knife molds near the inner side of the ultra-thin sealing gasket; a threaded hole on the top of the lower air knife mold; a screw limiting hole on the top of the upper air knife mold; a height-equalizing gasket disposed inside the screw limiting hole; a fastening screw screwed into the threaded hole; a screw through hole on the top of the ultra-thin sealing gasket near the outer side of the fastening screw; a positioning hole on the screw head of the fastening screw; a positioning screw hole on the inner wall of the screw limiting hole; and a positioning screw screwed into the positioning screw hole.

[0007] Furthermore, both the air inlet and the air outlet are connected to the air cavity;

[0008] By adopting the above technical solution, it is ensured that the gas enters the air chamber through the air inlet and is discharged through the air outlet.

[0009] Furthermore, the fastening screw passes through the upper mold of the air knife, and the screw head of the fastening screw is located inside the screw limiting hole;

[0010] By adopting the above technical solution, the screw head of the fastening screw can be stored and subsequently positioned through the screw limiting hole.

[0011] Furthermore, the equal-height gasket and the ultra-thin sealing gasket have the same thickness, and the equal-height gasket is made of high-hardness steel sheet;

[0012] By adopting the above technical solution, the ultra-thin sealing gasket can be protected by a high-hardness, equal-height gasket, which prevents the ultra-thin sealing gasket between the upper and lower molds of the air knife from being deformed by pressure, thus ensuring the accuracy of the air volume at the outlet.

[0013] Furthermore, the upper and lower air knife dies are fixed together by fastening screws and threaded holes, with the bottom end of the fastening screws contacting the bottom of the threaded holes.

[0014] By adopting the above technical solution, it can be ensured that after the fastening screw is fully screwed into the threaded hole, the upper and lower molds of the air knife are in a tightly fixed state.

[0015] Furthermore, the positioning hole and the positioning screw hole are located at the same height, and the positioning screw passes through the positioning hole;

[0016] By adopting the above technical solution, the positioning screw can be used to position the fastening screw in the horizontal direction, thus preventing the fastening screw from rotating.

[0017] The beneficial effects of this utility model are as follows:

[0018] This invention utilizes an ultra-thin sealing gasket to adjust the airflow by replacing gaskets of varying thicknesses to meet different airflow requirements. This allows for flexible airflow control without replacing the entire air knife. The use of a height-matching gasket, compatible with the thickness of the ultra-thin sealing gasket, protects it from deformation caused by excessive tightening force during installation of the upper and lower air knife molds, ensuring the accuracy of the air outlet. Furthermore, horizontal positioning of the fastening screw prevents loosening due to vibration, thus preventing separation of the upper and lower air knife molds and ensuring the sealing of the assembled air knife, as well as the accuracy of the airflow.

[0019] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is an exploded view of an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the lower mold structure of the air knife according to an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the ultra-thin sealing gasket structure according to an embodiment of the present invention;

[0025] Reference numerals in the attached diagram: 1. Upper mold of air knife; 2. Lower mold of air knife; 3. Ultra-thin sealing gasket; 4. Air inlet; 5. Air cavity; 6. Air outlet; 7. Threaded hole; 8. Screw limiting hole; 9. Equal height gasket; 10. Fastening screw; 11. Screw through hole; 12. Positioning hole; 13. Positioning screw hole; 14. Positioning screw. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] Reference Figure 1-4This utility model embodiment proposes an adjustable airflow air knife for tin coating, including an upper air knife mold 1 and a lower air knife mold 2. The upper air knife mold 1 is located above the lower air knife mold 2. Both the upper air knife mold 1 and the lower air knife mold 2 are precision manufactured by a high-precision five-axis machining center to ensure that the bottom of the upper air knife mold 1 and the top of the lower air knife mold 2 have super-flatness and extremely low surface roughness. An ultra-thin sealing gasket 3 is provided between the upper air knife mold 1 and the lower air knife mold 2. The ultra-thin sealing gasket 3 is processed by precision cutting technology, maintaining a deformation-free state and low surface roughness. An air inlet 4 is opened on the outer side wall of the lower air knife mold 2. The bottom of the upper air knife mold 1... Both the upper and lower molds of the air knife have air chambers 5 at their tops. An air outlet 6 is located between the upper and lower molds of the air knife, near the inner side of the ultra-thin sealing gasket 3. Both the air inlet 4 and the air outlet 6 are connected to the air chambers 5, ensuring that gas enters the air chambers 5 through the air inlet 4 and exits through the air outlet 6. Six threaded holes 7 are symmetrically located on the top of the lower mold of the air knife near the outer side of the air chamber 5. Six screw limiting holes 8 are symmetrically located on the top of the upper mold of the air knife. Equal-height gaskets 9 are located at the bottom of the threaded holes 7. The equal-height gaskets 9 and the ultra-thin sealing gasket 3 have the same thickness, and the equal-height gaskets 9 are made of high-hardness steel. The high gasket 9 protects the ultra-thin sealing gasket 3, preventing it from being deformed under pressure between the upper and lower air knife molds 1 and 2, thus ensuring the accuracy of the airflow from the outlet 6. A fastening screw 10 is threadedly connected inside the threaded hole 7, passing through the upper air knife mold 1. The screw head of the fastening screw 10 is located inside the screw limiting hole 8, which allows for the storage and subsequent positioning of the screw head. The upper and lower air knife molds 1 and 2 are secured by the fastening screw 10 screwed into the threaded hole 7. The bottom end of the fastening screw 10 contacts the bottom of the threaded hole 7, ensuring a tight seal. After the fastening screw 10 is fully screwed into the threaded hole 7, the upper mold 1 and the lower mold 2 of the air knife are in a tightly fixed state. The top of the ultra-thin sealing gasket 3 is provided with a screw through hole 11 through which the fastening screw 10 can pass. A positioning hole 12 is provided on the outer side wall of the screw head at one end of the fastening screw 10. A positioning screw hole 13 is provided on the inner side wall of the screw limiting hole 8. A positioning screw 14 is connected to the inside of the positioning screw hole 13 by thread. The positioning hole 12 and the positioning screw hole 13 are at the same height. The positioning screw 14 passes through the positioning hole 12. The positioning screw 14 can be used to position the fastening screw 10 in the horizontal direction to prevent the fastening screw 10 from rotating.

[0028] The specific implementation method is as follows: During assembly, a gasket 9 of the same thickness as the ultra-thin sealing gasket 3 is placed inside the threaded hole 7. High-vacuum silicone grease is evenly applied to the bottom and bottom of the ultra-thin sealing gasket 3 and placed between the upper mold 1 and the lower mold 2 of the air knife. The high-vacuum silicone grease enhances the sealing performance of the connection. At this time, the fastening screw 10 is passed through the upper mold 1 of the air knife and screwed into the threaded hole 7. The fastening screw 10 is gradually tightened, and the screw head at one end of the fastening screw 10 enters the screw limiting hole 8 and squeezes the upper mold 1 of the air knife. Gradually, a compressive force is applied to the upper mold 1 of the air knife, causing the upper mold 1, the lower mold 2 of the air knife, and the ultra-thin sealing gasket 3 to become tightly sealed. The sealing gaskets 3 are fixed together. When the fastening screw 10 contacts the leveling gasket 9, the fastening screw 10 is tightened into place. At this time, the positioning hole 12 and the positioning screw hole 13 coincide in the horizontal direction. The positioning screw 14 is passed through the positioning hole 12 and screwed into the positioning screw hole 13 to position the fastening screw 10. In use, the gas enters from the air inlet 4 and is then poured into the air chamber 5. The gas is accurately released at the air outlet 6. In order to meet different air volume requirements, the air volume can be adjusted by replacing the ultra-thin sealing gaskets 3 and the leveling gaskets 9 of different thicknesses to achieve flexible air volume control.

[0029] 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 illustrative of the principles of this 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A tin-coating air-cooling knife with adjustable airflow, characterized in that: Includes the upper air knife mold (1) and the lower air knife mold (2) below it; An ultra-thin sealing gasket (3) is provided between the upper mold (1) and the lower mold (2) of the air knife; An air inlet (4) is formed on the outer side wall of the lower mold (2) of the air knife; Air cavities (5) are respectively opened at the bottom of the upper mold (1) and the top of the lower mold (2) of the air knife; An air outlet (6) is located between the upper mold (1) and the lower mold (2) of the air knife, near the inner side of the ultra-thin sealing gasket (3); A threaded hole (7) is formed at the top of the lower die (2) of the air knife; and A screw limiting hole (8) is opened at the top of the upper mold (1) of the air knife; Equal-height shims (9) placed inside the screw limiting hole (8); A fastening screw (10) is threaded into the threaded hole (7); A screw through hole (11) is opened at the top of the ultra-thin sealing gasket (3) near the outer side of the fastening screw (10); A positioning hole (12) is provided on the screw head of the fastening screw (10); A positioning screw hole (13) is formed on the inner side wall of the screw limiting hole (8); A positioning screw (14) is threaded into the positioning screw hole (13).

2. The adjustable airflow duct for tin coating according to claim 1, characterized in that: The air inlet (4) and air outlet (6) are both connected to the air chamber (5).

3. The adjustable airflow duct for tin coating according to claim 1, characterized in that: The fastening screw (10) passes through the upper mold (1) of the air knife, and the screw head of the fastening screw (10) is located inside the screw limiting hole (8).

4. The adjustable airflow duct for tin coating according to claim 1, characterized in that: The equal-height gasket (9) and the ultra-thin sealing gasket (3) have the same thickness, and the equal-height gasket (9) is made of high-hardness steel sheet.

5. The adjustable airflow duct for tin coating according to claim 1, characterized in that: The upper mold (1) and lower mold (2) of the air knife are fixed together by fastening screws (10) and threaded holes (7), with the bottom end of the fastening screws (10) contacting the bottom of the inside of the threaded holes (7).

6. The adjustable airflow combustor for tin coating according to claim 1, characterized in that: The positioning hole (12) and the positioning screw hole (13) are at the same height, and the positioning screw (14) passes through the positioning hole (12).

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