Air knife adjustment device

Abstract

The utility model provides a wind knife adjustment device, which belongs to the field of wind knife technology, and includes two wind knife plates, at least one fixed plate and an adjustment component. An air outlet slit is formed between the two wind knife plates, the fixed plate and the deforming part are arranged relatively to each other, and the deforming part is located between the fixed plate and the air outlet slit; the adjustment component is arranged on the fixed plate, and the adjustment component is used to drive the deforming part to move so as to adjust the size of the air outlet slit. The movement of the deforming part is achieved by the adjustment component arranged on the fixed plate, and the movement of the deforming part can adjust the size of the air outlet slit to meet actual needs, and the deforming part is located between the fixed plate and the air outlet slit, and the adjustment component will not enter the air outlet slit, thereby avoiding the problem that the adjustment component enters the air outlet slit to affect the air flow and make the air outlet wind speed uneven, ensuring the uniformity of the lateral wind speed at the air knife outlet, so that the product drying effect is good, thereby improving the product quality.

Description

Technical Field

[0001] The utility model relates to the technical field of wind knives, in particular to a wind knife regulating device. Background Art

[0002] The air knife, also known as the air knife dryer, achieves the purpose of rapid drying by spraying gas onto the surface of the material and using the airflow to take away the moisture on the surface of the material. Compared with other drying equipment, the air knife has the advantages of rapid drying, wide application range, simple operation and high production efficiency.

[0003] In the process of preparing perovskite solar cells, perovskite coating and film making is a very critical step. The wind knife plays a key drying role in the perovskite coating and film making process, ensuring the uniformity and stability of the perovskite film preparation process, avoiding uneven thickness or local accumulation. By uniformly drying and quality control of the film, it helps to improve the quality of perovskite film preparation and production efficiency.

[0004] The existing air knife gap size is adjusted and controlled by a push-pull rod adjustment screw. However, the existing push-pull rod adjustment screw is set through the flow channel inside the air knife, which has a great influence on the flow of airflow, resulting in poor uniformity of lateral wind speed at the air knife outlet, poor product drying effect, and reduced product quality.

[0005] Therefore, it is necessary to design a wind knife adjustment device to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a wind knife regulating device which does not affect the flow of airflow in a flow channel inside the wind knife.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A wind knife adjustment device, comprising: two wind knife plates, an air outlet slit is formed between the two wind knife plates, and at least one wind knife plate has a deformation portion at its air outlet end;

[0009] at least one fixed plate, the fixed plate and the deformable portion are arranged opposite to each other, and the deformable portion is located between the fixed plate and the air outlet slit;

[0010] An adjusting component is arranged on the fixing plate, and is used for driving the deformation part to move so as to adjust the size of the air outlet slit.

[0011] Optionally, two ends of the fixing plate have protrusions, and the two protrusions are connected to the wind blade plate and have a deformation gap between the two protrusions and the deformation part.

[0012] Optionally, a deformation gap is provided between the fixing plate and the deformation portion;

[0013] The adjusting assembly includes a first adjusting member and a second adjusting member, both of which are connected to the fixing plate. The first adjusting member is used to drive the deformation portion to approach the fixing plate, and the second adjusting member is used to drive the deformation portion to move away from the fixing plate.

[0014] Optionally, a plurality of first adjusting threaded holes and a plurality of second adjusting threaded holes are provided on the fixing plate, and a threaded blind hole is provided at a position on the deformation portion opposite to the first adjusting threaded holes;

[0015] The first adjusting member and the second adjusting member are both adjusting screws. The first adjusting member is inserted into the first adjusting threaded hole and the threaded blind hole, and the second adjusting member is inserted into the second adjusting threaded hole.

[0016] Optionally, there are a plurality of the first adjusting member and a plurality of the second adjusting member, and the plurality of the first adjusting members and the plurality of the second adjusting members are evenly spaced and arranged.

[0017] Optionally, at least one of the air outlet ends of the wind blade plates is provided with a mounting groove, and the fixing plate is arranged in the mounting groove.

[0018] Optionally, the thickness of the deformation portion is less than or equal to the thickness of the fixing plate.

[0019] Optionally, at least one of the wind blade plates has an air inlet and a chamber, and the air inlet, the chamber and the air outlet slit are connected.

[0020] Optionally, the first wind blade plate has a first chamber and a second chamber, and the first chamber is provided with an air inlet;

[0021] The second wind blade plate has a third chamber, and the airflow passes through the air inlet, the first chamber, the third chamber and the second chamber in sequence, and is then sent out from the air outlet slit.

[0022] Optionally, a gasket is also included, and the gasket is clamped between the two wind blade plates to form the air outlet slit.

[0023] Compared with the prior art, the technical solution of the utility model has the following advantages:

[0024] The utility model provides an air knife adjustment device, comprising two air knife plates, at least one fixed plate and an adjustment component, wherein an air outlet slit is formed between the two air knife plates, the fixed plate and the deformable portion are arranged opposite to each other, the deformable portion is located between the fixed plate and the air outlet slit, the adjustment component is arranged on the fixed plate, and the adjustment component drives the deformable portion to move to adjust the size of the air outlet slit;

[0025] The setting of the fixed plate provides a reference for the movement of the deformation part. The movement of the deformation part realizes the size adjustment of the air outlet slit. The movement of the deformation part is realized by the adjustment component arranged on the fixed plate. The movement of the deformation part is realized from the outside, and there is no need to set an adjusting screw in the flow channel. The problem of the adjustment screw passing through the flow channel affecting the airflow flow is avoided, the uniformity of the lateral wind speed at the wind knife outlet is improved, the product drying effect is good, and the product quality is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic structural diagram of an implementation of an air knife adjustment device provided in an embodiment of the utility model;

[0028] Figure 2 for Figure 1 A local enlarged schematic diagram in FIG.

[0029] Figure 3 for Figure 1 A schematic diagram of the structure of the fixed plate in FIG.

[0030] Figure 4 for Figure 3 A partial enlarged schematic diagram of

[0031] Figure 5 for Figure 1 A schematic diagram of a top view structure;

[0032] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure AA;

[0033] Figure 7 for Figure 6 A partial enlarged schematic diagram of

[0034] Figure 8 for Figure 5 BB;

[0035] Fig. 9 for Figure 8 A partial enlarged schematic diagram of

[0036] Fig.10 for Figure 1 A schematic diagram of the structure of one of the wind knife plates;

[0037] Fig.11 for Figure 1 A schematic diagram of the structure of another wind knife plate;

[0038] Fig.12 for Figure 1 Schematic diagram of the structure of the middle gasket.

[0039] Description of reference numerals:

[0040] 1. Wind knife plate; 2. Air outlet slit; 3. Deformation part; 4. Fixed plate; 5. Adjustment component; 6. Deformation gap; 7. Raised part; 8. First adjustment member; 9. Second adjustment member; 10. First adjustment threaded hole; 11. Second adjustment threaded hole; 12. Threaded blind hole; 13. Mounting groove; 14. Air inlet; 15. First chamber; 16. Second chamber; 17. Third chamber; 18. Gasket; 19. Long plate; 20. Short plate. DETAILED DESCRIPTION

[0041] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0045] The wind knife adjustment device provided in this embodiment is used in a single-layer or multi-layer wind knife to adjust the size of the wind outlet slit of the wind knife.

[0046] like Figure 1 and Figure 2 As shown, a specific implementation of the wind blade adjustment device provided in this embodiment includes a wind blade plate 1, a fixed plate 4 and an adjustment component 5. The wind blade plate 1 has two, namely a first wind blade plate and a second wind blade plate, an air outlet slit 2 is formed between the two wind blade plates 1, and the air outlet end of the first wind blade plate has a deformation portion 3; a fixed plate 4, the fixed plate 4 and the deformation portion 3 are arranged opposite to each other, and the deformation portion 3 is located between the fixed plate 4 and the air outlet slit 2; the adjustment component 5 is arranged on the fixed plate 4, and the adjustment component 5 is used to drive the deformation portion 3 to move so as to adjust the size of the air outlet slit 2. In other embodiments, two fixed plates 4 can be provided, specifically, each wind blade plate 1 has a deformation portion 3 at the air outlet end, each deformation portion 3 is arranged opposite to a fixed plate 4, and an adjustment component 5 is arranged on each fixed plate 4.

[0047] The setting of the fixed plate 4 provides a reference for the movement of the deformation part 3. The movement of the deformation part 3 realizes the size adjustment of the air outlet slit 2. The movement of the deformation part 3 is realized by the adjustment component 5 set on the fixed plate 4. The movement of the deformation part 3 is realized from the outside, and there is no need to set an adjusting screw in the flow channel. The problem of the adjustment screw passing through the flow channel affecting the air flow is avoided, the uniformity of the lateral wind speed at the wind knife outlet is improved, the product drying effect is good, and the product quality is improved.

[0048] Specifically, the other peripheral sides of the non-air outlet slits 2 of the two wind blade plates 1 are provided with fixing screw holes, and the two wind blade plates 1 are fixedly connected by fixing screws in the fixing screw holes. In other embodiments, the two wind blade plates 1 can be fixed in other ways. In this embodiment, the fixing plate 4 and the deformation part 3 are arranged in coordination, and are only arranged on one of the wind blade plates 1. In other embodiments, the deformation part 3 and the fixing plate 4 can be arranged on both wind blade plates 1 at the same time.

[0049] like Figures 1 to 4As shown, the wind knife adjustment device provided in this example has a deformation gap 6 between the fixed plate 4 and the deformation part 3, and the two ends of the fixed plate 4 have protrusions 7, and the protrusions 7 are used to connect with the wind knife plate 1, and the deformation gap 6 is formed between the two protrusions 7 and the deformation part 3 of the wind knife plate 1. The setting of the deformation gap 6 provides space for the movement of the deformation part 3, ensuring the adjustment of the size of the air outlet slit 2; the setting of the protrusion 7 realizes the formation of the deformation gap 6 in a relatively simple way, and the structure is simple. In addition, as an alternative embodiment, the protrusion 7 is not arranged on the fixed plate 4, but on the wind knife plate 1, and the fixed plate 4 is overlapped and fixed on the protrusion 7, thereby realizing the formation of the deformation gap 6.

[0050] Specifically, a fixing screw hole is provided on the raised portion 7, and the fixing screw hole on the raised portion 7 is connected to the fixing screw hole on the wind blade plate 1 through a fixing screw; the raised portion 7 is a rectangular raised structure.

[0051] In a specific embodiment of the fixing plate 4, the length of the fixing plate 4 is the same as the length of the wind blade plate 1, and the length of the deformation gap 6 is the same as the length of the air outlet slit 2, ensuring that the air outlet slit 2 can move synchronously in its length direction. In other embodiments, the length of the fixing plate 4 can be designed according to actual needs.

[0052] like Figure 1 As shown, the wind knife adjustment device provided in this example has a deformation gap 6 between the fixed plate 4 and the deformation part 3; the adjustment component 5 includes a first adjustment member 8 and a second adjustment member 9, both of which are connected to the fixed plate 4, the first adjustment member 8 is used to drive the deformation part 3 to approach the fixed plate 4, and the second adjustment member 9 is used to drive the deformation part 3 away from the fixed plate 4.

[0053] The provision of the first adjusting member 8 and the second adjusting member 9 enables the deformation portion 3 to be adjusted in two directions, thereby completing the enlargement and reduction of the air outlet slit.

[0054] like Figures 5 to 9 As shown, the wind knife adjustment device provided in this example is provided with a plurality of first adjustment threaded holes 10 and a plurality of second adjustment threaded holes 11 on the fixing plate 4, and a threaded blind hole 12 is provided on the deformation portion 3 at a position opposite to the first adjustment threaded hole 10; the first adjustment member 8 and the second adjustment member 9 are both adjustment screws, the first adjustment member 8 is inserted into the first adjustment threaded hole 10 and the threaded blind hole 12, and the second adjustment member 9 is inserted into the second adjustment threaded hole 11.

[0055] When the air outlet slit 2 needs to be enlarged, the second adjusting member 9 is away from the deformation part 3, and the first adjusting member 8 acts on the deformation part 3. The end of the first adjusting member 8 is screwed in the threaded blind hole 12. By rotating the first adjusting member 8, the deformation part 3 and the fixed plate 4 are brought closer, that is, the air outlet slit 2 is enlarged; when the air outlet slit 2 needs to be reduced, the end of the first adjusting member 8 is rotated away from the threaded blind hole 12, and the second adjusting member 9 is rotated until its end abuts against the deformation part 3, and continues to rotate to push the deformation part 3 away from the fixed plate 4, thereby reducing the air outlet slit 2. The air outlet slit 2 is adjusted by driving the adjusting screw, and the adjustment method is simpler and more controllable, and more precise for small adjustments.

[0056] like Figure 3 As shown, the wind knife adjustment device provided in this example has multiple first adjustment members 8 and multiple second adjustment members 9, and multiple first adjustment members 8 and multiple second adjustment members 9 are evenly spaced. When used together, the consistency of the size of the air outlet slit 2 is ensured, and the uniformity of the lateral wind speed of the wind knife is improved. The evenly spaced arrangement means that: multiple first adjustment threaded holes 10 are evenly spaced along the length direction of the wind knife plate 1, multiple second adjustment threaded holes 11 are evenly spaced along the length direction of the wind knife plate 1, and a second adjustment threaded hole 11 is arranged between two adjacent first adjustment threaded holes 10.

[0057] In addition, as an alternative embodiment, the adjustment component 5 can also be an electric adjustment component, for example, an electric telescopic component, which is installed on the fixed plate 4, and its output end is connected to the deformation part 3 to achieve adjustment of the deformation part 3 in two directions.

[0058] like Fig.11 As shown, in the wind blade adjustment device provided in this example, at least one of the wind blade plates 1 is provided with a mounting groove 13 at the air outlet end, and the fixed plate 4 is provided in the mounting groove 13, which improves the compactness of the overall structure, and the provision of the mounting groove 13 also reduces the thickness of the deformation portion 3, thereby preventing the deformation portion 3 from being too thick and unfavorable for its movement. When the deformation portion 3 is provided on both wind blade plates 1, the mounting groove 13 is provided on both wind blade plates 1. In addition, as an alternative embodiment, the mounting groove 13 may not be provided, and the fixed plate 4 may be directly provided on the top of the wind blade plate 1.

[0059] In the wind knife adjustment device provided in this example, the thickness of the deformable portion 3 is less than the thickness of the fixed plate 4, which is beneficial to control the deformable portion 3. In other embodiments, the thickness of the deformable portion 3 may be equal to the thickness of the fixed plate 4.

[0060] like Fig.10 and Fig.11As shown, the wind knife adjustment device provided in this example has an air inlet 14 and a chamber on the first wind knife plate, and the air inlet 14, the chamber and the air outlet slit 2 are connected. The airflow passes through the air inlet 14 and the chamber and is sent out from the air outlet slit 2. The setting of the chamber improves the uniformity of the internal air pressure and reduces the impact of the airflow on the wind knife. In other embodiments, both wind knife plates 1 have chambers.

[0061] like Figures 6 to 11 As shown, the wind knife adjustment device provided in this example, the first wind knife plate 1 has a first chamber 15 and a second chamber 16, and the first chamber 15 is provided with an air inlet 14; the second wind knife plate 1 has a third chamber 17, and the airflow passes through the air inlet 14, the first chamber 15, the third chamber 17 and the second chamber 16 in sequence, and is sent out from the air outlet slit 2. The setting of the three-stage cavity increases the fluidity of the gas in the cavity, makes the airflow more balanced and stable, and plays a buffering role.

[0062] Specifically, two side walls of the second chamber 16 are inclined surfaces, which further improve the stability of the airflow. At least a portion of the third chamber 17 is relatively connected to the first chamber 15 , and at least another portion of the third chamber 17 is relatively connected to the second chamber 16 .

[0063] like Figure 1 and Fig.12 As shown, the wind knife adjustment device provided in this example further includes a gasket 18, which is sandwiched between the two wind knife plates 1 to form the air outlet slit 2. Specifically, a fixing screw hole is provided on the gasket 18, and the fixing screw hole on the gasket 18 is connected to the fixing screw hole on the wind knife plate 1 through a fixing screw.

[0064] Specifically, the gasket 18 includes a long plate 19 and two short plates 20 arranged at both ends of the long plate 19. The fixing screws pass through the fixing screw holes on the fixing plate 4, the fixing screw holes on one wind blade plate 1, the fixing screw holes on the gasket 18 and the fixing screw holes on the other wind blade plate 1 in sequence to complete the fixation between the fixing plate 4, the two wind blade plates 1 and the gasket 18.

[0065] Working process of the air knife adjustment device:

[0066] Increase the air outlet slit 2: the second adjusting member 9 is rotated away from the deformation part 3 and does not act on the deformation part 3. Only the first adjusting member 8 acts on the deformation part 3. The end of the first adjusting member 8 is screwed into the threaded blind hole 12 and continues to be screwed. Under the action of the threaded fit, the deformation part 3 moves in the direction close to the fixed plate 4. At this time, the space of the deformation gap 6 is reduced, thereby achieving the increase of the air outlet slit 2.

[0067] Reduce the air outlet slit 2: first rotate the end of the first adjusting member 8 to leave the threaded blind hole 12, do not act on the deformation part 3, only the second adjusting member 9 acts on the deformation part 3, rotate the second adjusting member 9 until its end abuts against the end face of the deformation part 3, continue to rotate the second adjusting member 9, the second adjusting member 9 pushes the deformation part 3 to move away from the fixed plate 4, the deformation gap 6 increases, and the air outlet slit 2 is reduced.

[0068] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the present utility model.

Claims

1. A wind knife adjustment device, characterized in that: include: The wind blade plates (1) are provided with two of them, an air outlet slit (2) is formed between the two wind blade plates (1), and the air outlet end of at least one of the wind blade plates (1) has a deformation portion (3); at least one fixing plate (4), the fixing plate (4) and the deformation portion (3) being arranged opposite to each other, and the deformation portion (3) being located between the fixing plate (4) and the air outlet slit (2); An adjusting component (5) is arranged on the fixing plate (4), and the adjusting component (5) is used to drive the deformation portion (3) to move so as to adjust the size of the air outlet slit (2).

2. The wind knife adjustment device according to claim 1, characterized in that: The fixing plate (4) has protrusions (7) at both ends, the two protrusions (7) are connected to the wind blade plate (1), and a deformation gap (6) is formed between the two protrusions (7) and the deformation portion (3).

3. The wind knife adjustment device according to claim 1, characterized in that: A deformation gap (6) is provided between the fixing plate (4) and the deformation portion (3); The adjustment assembly (5) comprises a first adjustment member (8) and a second adjustment member (9), both of which are connected to the fixed plate (4); the first adjustment member (8) is used to drive the deformation portion (3) to approach the fixed plate (4), and the second adjustment member (9) is used to drive the deformation portion (3) to move away from the fixed plate (4).

4. The wind knife adjustment device according to claim 3, characterized in that: The fixing plate (4) is provided with a plurality of first adjustment threaded holes (10) and a plurality of second adjustment threaded holes (11), and a threaded blind hole (12) is provided on the deformation portion (3) at a position opposite to the first adjustment threaded hole (10); The first adjusting member (8) and the second adjusting member (9) are both adjusting screws; the first adjusting member (8) is inserted into the first adjusting threaded hole (10) and the threaded blind hole (12); and the second adjusting member (9) is inserted into the second adjusting threaded hole (11).

5. The wind knife adjustment device according to claim 3, characterized in that: There are a plurality of the first adjusting member (8) and a plurality of the second adjusting member (9), and the plurality of the first adjusting members (8) and the plurality of the second adjusting members (9) are evenly spaced and arranged.

6. The wind knife adjustment device according to claim 1, characterized in that: The air outlet end of at least one of the wind blade plates (1) is provided with a mounting groove (13), and the fixing plate (4) is arranged in the mounting groove (13).

7. The wind knife adjustment device according to claim 1, characterized in that: The thickness of the deformation portion (3) is less than or equal to the thickness of the fixing plate (4).

8. The wind knife adjustment device according to claim 1, characterized in that: At least one of the wind blade plates (1) is provided with an air inlet (14) and a chamber, and the air inlet (14), the chamber and the air outlet slit (2) are in communication.

9. The wind knife adjustment device according to claim 1, characterized in that: The first wind blade plate (1) comprises a first chamber (15) and a second chamber (16), and the first chamber (15) is provided with an air inlet (14); The second wind blade plate (1) has a third chamber (17), and the airflow passes through the air inlet (14), the first chamber (15), the third chamber (17) and the second chamber (16) in sequence before being sent out from the air outlet slit (2).

10. The wind knife adjustment device according to any one of claims 1 to 9, characterized in that: It also comprises a gasket (18), wherein the gasket (18) is sandwiched between the two wind blade plates (1) to form the air outlet slit (2).

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