Air floating tuyere capable of conveniently adjusting levelness, tuyere system and coating machine

Abstract

The utility model discloses an air floating type tuyere capable of conveniently adjusting levelness, a tuyere system and a coating machine, the air floating type tuyere comprises a tuyere mounting seat, a tuyere body and four levelness adjusting units which are respectively arranged at four corners of the tuyere mounting seat, a through hole is formed in a mounting seat cross beam of the tuyere mounting seat, and the tuyere body is arranged in the through hole. The levelness adjusting unit comprises a worm and gear assembly and a connecting rod extending in the height direction of the tuyere body, the worm and gear assembly is located in the tuyere body, the connecting rod is rotationally connected with the mounting base cross beam and comprises a head part and a main body part, the diameter of the main body part is smaller than that of the head part, and the main body part penetrates through the through hole to be in threaded connection with the tuyere cross beam of the tuyere body; a worm gear of the worm and gear assembly fixedly sleeves one end, far away from the head part, of the main body part, and one end of a worm extends out of the tuyere body. The rotating worm can drive the corresponding corner of the tuyere body to move through the worm gear and the connecting rod to achieve adjustment of the levelness of the air floating type tuyere, and the worm extends out of the tuyere body and is conveniently driven to rotate.

Description

Technical Field

[0001] This utility model relates to the field of coating technology, specifically to an air-floating nozzle with adjustable level, a nozzle system, and a coating machine. Background Technology

[0002] In the front-end processes of battery production, the coating machine drying oven is the main component for baking the electrode sheets. The nozzles press hot air evenly and then blow it onto the electrode sheets through narrow slits to dry them.

[0003] like Figure 1 As shown, multiple upright air nozzles are provided above the electrode sheet, and multiple inverted air nozzles are provided below the electrode sheet. In the horizontal direction, the upright and inverted air nozzles are arranged alternately. The electrode sheet passes through the upright and inverted air nozzles. This arrangement of air nozzles can form an air vortex on the surface of the electrode sheet. The air vortex propels the electrode sheet forward and also helps to dry the electrode sheet evenly.

[0004] like Figure 2 The diagram shows a schematic of an existing adjustable air-float type air nozzle. The air-float type air nozzle includes four leveling adjustment components, and an air nozzle body and a nozzle mounting base connected by these components. The four leveling adjustment components are respectively located at the four corners of the air nozzle body. Each adjustment component is formed by welding a long nut and a screw together. Specifically, one end of the screw is rotatably connected to the air nozzle mounting base, and the other end is threadedly connected to the air nozzle crossbeam of the air nozzle body. To adjust the air nozzle's level, simply insert a suitable wrench into the gap between the air nozzle mounting base and the air nozzle body. Figure 2 Tightening the long nut (as shown by the middle arrow) causes the screw to rotate, which in turn moves the nozzle body along the length of the screw, thus adjusting the nozzle's level. However, if the gap between the nozzle body and the nozzle mounting base is too small, it will affect the ease of use of the wrench.

[0005] In view of the above shortcomings, it is necessary to design an air-floating nozzle, nozzle system and coating machine that can be easily adjusted for levelness. Utility Model Content

[0006] Therefore, the technical problem to be solved by this utility model is that in the existing adjustable air-floating air nozzles, when the gap between the air nozzle body and the air nozzle mounting base is small, it is inconvenient to use a wrench. Thus, this utility model provides an air-floating air nozzle, air nozzle system and coating machine that can be easily adjusted in terms of level.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0008] An air-floating nozzle with easily adjustable levelness is disclosed. The air-floating nozzle includes a nozzle mounting base, a nozzle body, and four leveling adjustment units respectively disposed at the four corners of the nozzle mounting base. A through hole is provided on the mounting beam of the nozzle mounting base. Each leveling adjustment unit includes a worm gear assembly and a connecting rod extending along the height direction of the nozzle body. The worm gear assembly is located inside the nozzle body. The connecting rod is rotatably connected to the mounting beam and includes a connected head and a main body portion with a diameter smaller than the head. The main body portion passes through the through hole and is threadedly connected to the nozzle beam of the nozzle body. The worm gear of the worm gear assembly is fixedly sleeved on the main body portion at the end away from the head, and one end of the worm of the worm gear assembly extends out of the nozzle body.

[0009] Furthermore, the nozzle crossbeam is provided with a threaded hole, and the outer wall of the main body is provided with an external thread that is threadedly connected to the threaded hole; or,

[0010] A through hole is provided on the air nozzle crossbeam, and a nut is fixed on the air nozzle crossbeam. The nut is arranged around the through hole, and the main body is threadedly connected to the nut.

[0011] Furthermore, it also includes a protective cover fixedly disposed within the nozzle body, and the worm gear is located within the protective cover.

[0012] Furthermore, the connecting rod is a countersunk screw.

[0013] Furthermore, the nozzle body includes two nozzle side plates and a nozzle baffle. The nozzle baffle is located between the two nozzle side plates. The nozzle baffle includes a horizontal baffle and two side baffles. The two side baffles are bent and extended from both ends of the horizontal baffle toward the nozzle mounting base. The bottom end of the nozzle side plate is bent and extended toward the side baffle. There is an air outlet slit between the outer side wall of the side baffle and the inner side wall of the corresponding nozzle side plate.

[0014] Furthermore, it also includes a long connector and a short connector extending along the width direction of the nozzle body. The two ends of the long connector are respectively fixedly connected to the two nozzle side plates, and the two ends of the short connector are respectively connected to the nozzle side plate and the corresponding side baffle.

[0015] Furthermore, the side baffle is provided with a plug hole, and the outer wall of the inner end of the short connector that plugs into the plug hole is provided with an external thread. A nut is installed on the short connector between the nozzle side plate and the corresponding side baffle. Changing the connection position of the nut and the external thread can change the distance between the side baffle and the corresponding nozzle side plate.

[0016] Furthermore, a first air inlet is provided on the mounting base crossbeam, and an annular extension plate extending toward the nozzle body is provided around the first air inlet on the mounting base crossbeam. A second air inlet is provided on the nozzle crossbeam, and an annular movable plate and a sealing ring surrounding the annular movable plate are provided around the second air inlet on the nozzle crossbeam. The sealing ring is located between the annular extension plate and the annular movable plate, and the sealing ring is connected to the annular extension plate.

[0017] The technical solution of this utility model has the following advantages:

[0018] 1. This utility model provides an air-floating nozzle with easily adjustable level, comprising a nozzle mounting base, a nozzle body, and four level adjustment units respectively disposed at the four corners of the nozzle mounting base. The mounting beam of the nozzle mounting base has a through hole. Each level adjustment unit includes a worm gear assembly and a connecting rod extending along the height direction of the nozzle body. The worm gear assembly is located within the nozzle body, and the connecting rod is rotatably connected to the mounting beam. It includes a connected head and a main body portion with a diameter smaller than the head. The main body portion passes through the through hole and is threadedly connected to the nozzle beam of the nozzle body. The worm gear of the worm gear assembly is fixedly sleeved on the main body portion at the end furthest from the head, and one end of the worm extends out of the nozzle body. When a significant difference in level is detected in a single air-floating nozzle, resulting in poor drying of the electrode sheet, one or two worm gear assemblies on the single air-floating nozzle can be adjusted to bring the level of the air-floating nozzle to the required level, thereby improving the drying quality of the electrode sheet. Specifically, a worm gear drive can be used to drive the worm to rotate at the end of the worm that extends beyond the nozzle body. This rotation, in turn, drives the connecting rod to rotate via the worm and worm wheel. Since the connecting rod is threadedly connected to the nozzle beam of the nozzle body, its rotation causes the nozzle body to move along the length of the connecting rod, thus adjusting the distance between this corner position on the nozzle body and the item to be dried. Because the worm extends beyond the nozzle body, the worm gear drive can easily operate the worm.

[0019] 2. The air-floating nozzle with adjustable level provided by this utility model also includes a protective cover fixedly installed inside the nozzle body. The worm gear is located inside the protective cover, which can reduce the negative impact of impurities or solvents volatilized from the electrode on the service life of the worm gear assembly.

[0020] 3. The air-floating nozzle provided by this utility model has an adjustable level and the distance between the side baffle and the corresponding nozzle side plate is adjustable so as to adjust the air pressure blown onto the part to be dried.

[0021] An adjustable-level air-floating nozzle system is used for drying a workpiece. It includes a positively positioned nozzle located above the workpiece and blowing air towards its upper surface, and an inverted nozzle located below the workpiece and blowing air towards its lower surface. The positively positioned nozzle is the aforementioned adjustable-level air-floating nozzle. The inverted nozzle includes the aforementioned adjustable-level air-floating nozzle and four anti-reverse members. The anti-reverse members are fixedly connected to the connecting rods of the air-floating nozzles. The mounting beam of the air-floating nozzle is located between the head and the anti-reverse members.

[0022] The technical solution of this utility model has the following advantages:

[0023] The air-floating nozzle system with adjustable level provided by this utility model has all the advantages of the aforementioned air-floating nozzle with adjustable level.

[0024] A coating machine includes a drying chamber and the aforementioned air-floating nozzle system with adjustable level, wherein the air-floating nozzle system is disposed inside the drying chamber.

[0025] The coating machine provided by this utility model has the advantages of the aforementioned air-floating nozzle system with easily adjustable level. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the arrangement of the air flotation nozzle system and the electrode in the prior art;

[0028] Figure 2 This is a three-dimensional schematic diagram of an air-floating nozzle in the prior art;

[0029] Figure 3 This is a three-dimensional schematic diagram of the air-floating nozzle in an embodiment of the present utility model;

[0030] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0031] Figure 5 This is a cross-sectional schematic diagram of the air-floating nozzle in an embodiment of the present utility model;

[0032] Figure 6This is a schematic diagram of the internal structure of the air-floating nozzle in an embodiment of this utility model;

[0033] Figure 7 This is a three-dimensional schematic diagram of the air-floating nozzle after removing the nozzle mounting base in an embodiment of this utility model;

[0034] Figure 8 This is a three-dimensional schematic diagram of the nozzle mounting base of the air-floating nozzle in an embodiment of this utility model.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Nozzle mounting base; 11. Mounting base crossbeam; 13. Anti-reverse component; 14. First air inlet; 15. Annular extension plate; 2. Nozzle body; 20. End wall; 21. Nozzle crossbeam; 212. Second air inlet; 22. Nut; 23. Nozzle side plate; 24. Nozzle baffle; 241. Horizontal baffle; 242. Side baffle; 25. Air outlet slit; 26. Long connector; 27. Short connector; 28. Protective cover; 29. ​​Annular movable plate; 3. Worm gear assembly; 31. Worm gear; 32. Worm; 33. Groove; 4. Connecting rod; 41. Head; 42. Main body; 6. Sealing ring. Detailed Implementation

[0037] 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.

[0038] 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" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] 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.

[0040] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0041] Example 1

[0042] like Figures 3 to 8 As shown, this embodiment provides an air-floating nozzle (hereinafter referred to as an air-floating nozzle) with easily adjustable level. The air-floating nozzle includes a nozzle mounting base 1, a nozzle body 2, and four level adjustment units respectively set at the four corners of the nozzle mounting base 1. The mounting base beam 11 of the nozzle mounting base 1 has a through hole. The level adjustment unit includes a worm gear assembly 3 and a connecting rod 4 extending along the height direction of the nozzle body 2. The worm gear assembly 3 is located inside the nozzle body 2. The connecting rod 4 is rotatably connected to the mounting base beam 11 and includes a connected head 41 and a main body 42 with a diameter smaller than the head 41. The main body 42 passes through the through hole and is threadedly connected to the nozzle beam 21 of the nozzle body 2. The worm gear 31 of the worm gear assembly 3 is fixedly sleeved on the main body 42 at the end away from the head 41. One end of the worm gear 32 of the worm gear assembly 3 extends out of the nozzle body 2.

[0043] When a significant difference in the levelness of a single air-floating nozzle is detected, resulting in poor drying of the electrode sheet, one or two worm gear assemblies 3 on the single air-floating nozzle can be adjusted to bring the air-floating nozzle to the required level, thereby improving the drying quality of the electrode sheet. Specifically, a worm drive can be used to act on the end of the worm 32 that extends out of the nozzle body 2, driving the worm 32 to rotate. This, in turn, drives the connecting rod 4 to rotate through the worm 32 and worm wheel 31. Since the connecting rod 4 is threadedly connected to the nozzle crossbeam 21 of the nozzle body 2, when the connecting rod 4 rotates, it can drive the nozzle body 2 to move along the length of the connecting rod 4, thus adjusting the distance between this corner position on the nozzle body 2 and the part to be dried. Because the worm 32 extends out of the nozzle body 2, it is convenient for the worm drive to operate the worm 32. The worm drive can be a screwdriver, in which case one end of the worm 32 is provided with a groove 33 (e.g., Figure 4As shown, the groove 33 can be a slotted groove, a cross-shaped groove, or a hexagonal groove. The groove 33 is for inserting a screwdriver. Of course, the worm gear 32 can also be turned directly with a wrench. Both the wrench and the screwdriver are referred to as worm gear drive components.

[0044] The air-floating nozzle in this embodiment is used for drying electrode sheets, but it can also be used for drying other parts to be dried.

[0045] Furthermore, a through hole is provided on the nozzle crossbeam 21, and a nut 22 is fixedly provided on the nozzle crossbeam 21. The nut 22 is arranged around the through hole, and the main body 42 is threadedly connected to the nut 22. Specifically, the nut 22 is provided on the surface of the nozzle crossbeam 21 facing away from the nozzle mounting base 1. Of course, the nut 22 can also be provided on the surface of the nozzle crossbeam 21 facing the nozzle mounting base 1. In addition, if the thickness of the nozzle crossbeam 21 is large, a threaded hole can be directly provided on the nozzle crossbeam 21, and an external thread is provided on the outer wall of the main body 42. The threaded connection between the external thread and the threaded hole can also realize the threaded connection between the connecting rod 4 and the nozzle crossbeam 21.

[0046] Furthermore, the air-floating nozzle also includes a protective cover 28 fixedly disposed within the nozzle body 2. The protective cover 28 has a cuboid structure, and the worm gear 31 is located within the protective cover 28. The worm 32 extends along the length of the nozzle body 2, with one end entering the protective cover 28 and meshing with the worm gear 31, and the other end protruding outside the nozzle body 2. Specifically, it protrudes from the end wall 20 of the nozzle body 2 (e.g., Figure 3 (As shown) outside.

[0047] Specifically, the connecting rod 4 is a countersunk hexagonal screw. The surface of the mounting beam 11 facing away from the nozzle body 2 is provided with a recessed area (unmarked). The head 41 of the countersunk hexagonal screw enters the recessed area, ensuring that the top surface of the head 41 is flush with the top surface of the mounting beam 11.

[0048] Furthermore, the nozzle body 2 includes two nozzle side plates 23 and a nozzle baffle 24. The bottom ends of the two nozzle side plates 23 are bent toward the nozzle baffle 24. The nozzle baffle 24 is located between the two nozzle side plates 23. The nozzle baffle 24 includes a horizontal baffle 241 and two side baffles 242. The two side baffles 242 are bent and extended from both ends of the horizontal baffle 241 toward the nozzle mounting base 1. The bottom ends of the nozzle side plates 23 are bent and extended toward the side baffles 242. There is an air outlet slit 25 between the outer side wall of the side baffle 242 and the inner side wall of the corresponding nozzle side plate 23.

[0049] Furthermore, such as Figure 5 and Figure 6As shown, the air-floating nozzle also includes a long connector 26 and a short connector 27 extending along the width direction of the nozzle body 2. The two ends of the long connector 26 are respectively fixedly connected to the two nozzle side plates 23. The two ends of the short connector 27 are respectively connected to the nozzle side plate 23 and the corresponding side baffle 242. The side baffle 242 is provided with a plug hole (not shown). The outer wall of the inner end of the short connector 27 that plugs into the plug hole is provided with an external thread. A nut is installed on the short connector 27 between the nozzle side plate 23 and the corresponding side baffle 242. The nut abuts against the side baffle 242. Changing the connection position of the nut and the external thread can change the distance between the side baffle 242 and the corresponding nozzle side plate 23, thereby changing the size of the air outlet slit 25 so as to adjust the air pressure and air volume blown to the item to be dried.

[0050] Furthermore, such as Figures 5 to 7 As shown, a first air inlet 14 is provided on the mounting base crossbeam 11, and an annular extension plate 15 extending toward the nozzle body 2 is provided around the first air inlet 14 on the mounting base crossbeam 11. A second air inlet 212 is provided on the nozzle crossbeam 21, and an annular movable plate 29 and a sealing ring 6 are provided around the annular movable plate 29 on the second air inlet 212. The sealing ring 6 is located between the annular extension plate 15 and the annular movable plate 29, and the sealing ring 6 is connected to the annular extension plate 15.

[0051] Furthermore, the entire air-float nozzle is made of aluminum alloy.

[0052] The following describes the working process of the air-floating nozzle, which allows for easy adjustment of its level:

[0053] like Figure 5 As shown, after the air enters the nozzle body 2 through the first air inlet 14 and the second air inlet 212, it will turn around after hitting the nozzle baffle 24 due to the specific air pressure, and then collide with the newly entered air, filling the entire inner cavity of the nozzle body 2, and then blowing towards the electrode from the air outlet slit 25 to dry the electrode.

[0054] Example 2

[0055] This embodiment provides an air-floating nozzle system with easily adjustable level for drying a workpiece. It includes a positively positioned nozzle located above the workpiece and blowing air towards its upper surface, and an inverted nozzle located below the workpiece and blowing air towards its lower surface. The positively positioned nozzle is the easily adjustable air-floating nozzle from Embodiment 1 (e.g.,...). Figures 3 to 8 As shown), the inverted nozzle includes the air-floating nozzle with adjustable level as in Embodiment 1 and four anti-reverse components 13. The anti-reverse components 13 are fixedly connected to the connecting rod 4 of the air-floating nozzle, and the mounting beam 11 of the air-floating nozzle is located between the head 41 and the anti-reverse components 13.

[0056] In this embodiment, there are multiple upright and inverted air nozzles. Of course, other values ​​can also be used, which can be set according to actual needs, and no specific limitation is made here.

[0057] Specifically, the anti-reverse component 13 is a long nut arranged around the aforementioned through hole. Of course, the anti-reverse component 13 can also be a block structure spaced along the circumferential direction of the connecting rod 4.

[0058] The air-floating nozzle system provided by this utility model can easily adjust the level of a single air-floating nozzle. On the one hand, it can precisely adjust the level of a single air-floating nozzle. On the other hand, it can also adjust the level of the entire air-floating nozzle system by adjusting the level of a single air-floating nozzle, thereby improving drying uniformity and drying quality.

[0059] Example 3

[0060] This embodiment provides a coating machine, including a drying chamber and an air-floating nozzle system with adjustable level as described in Embodiment 2. The air-floating nozzle system is located inside the drying chamber.

[0061] The coating machine provided by this utility model has the advantages of the aforementioned air-floating nozzle system with easily adjustable level.

[0062] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A type of air-floating nozzle with easily adjustable level, characterized in that, The air-floating nozzle includes a nozzle mounting base (1), a nozzle body (2), and four leveling adjustment units respectively arranged at the four corners of the nozzle mounting base (1). A through hole is provided on the mounting beam (11) of the nozzle mounting base (1). Each leveling adjustment unit includes a worm gear assembly (3) and a connecting rod (4) extending along the height direction of the nozzle body (2). The worm gear assembly (3) is located inside the nozzle body (2), and the connecting rod (4) is connected to the... The mounting base beam (11) is rotatably connected, including a connected head (41) and a main body (42) with a diameter smaller than the head (41). The main body (42) passes through the through hole and is threadedly connected to the nozzle beam (21) of the nozzle body (2). The worm wheel (31) of the worm gear assembly (3) is fixedly sleeved on the main body (42) at one end away from the head (41). One end of the worm (32) of the worm gear assembly (3) extends out of the nozzle body (2).

2. The air-floating nozzle with easily adjustable levelness according to claim 1, characterized in that, The nozzle crossbeam (21) is provided with a threaded hole, and the outer wall of the main body (42) is provided with an external thread that is threadedly connected to the threaded hole; or, The nozzle crossbeam (21) has a through hole, and a nut (22) is fixedly installed on the nozzle crossbeam (21). The nut (22) is arranged around the through hole, and the main body (42) is threadedly connected to the nut (22).

3. The air-floating nozzle with easily adjustable levelness according to claim 1, characterized in that, It also includes a protective cover (28) fixedly installed inside the nozzle body (2), and the worm gear (31) is located inside the protective cover (28).

4. The air-floating nozzle with easily adjustable levelness according to any one of claims 1-3, characterized in that, The connecting rod (4) is a countersunk screw.

5. The air-floating nozzle with easily adjustable level according to any one of claims 1-3, characterized in that, The nozzle body (2) includes two nozzle side plates (23) and a nozzle baffle (24). The nozzle baffle (24) is located between the two nozzle side plates (23). The nozzle baffle (24) includes a horizontal baffle (241) and two side baffles (242). The two side baffles (242) are bent and extended from both ends of the horizontal baffle (241) toward the nozzle mounting base (1). The bottom end of the nozzle side plate (23) is bent and extended toward the side baffle (242). There is an air outlet slit (25) between the outer side wall of the side baffle (242) and the inner side wall of the corresponding nozzle side plate (23).

6. The air-floating nozzle with easily adjustable levelness according to claim 5, characterized in that, It also includes a long connector (26) and a short connector (27) extending along the width direction of the nozzle body (2). The two ends of the long connector (26) are respectively fixedly connected to the two nozzle side plates (23), and the two ends of the short connector (27) are respectively connected to the nozzle side plate (23) and the corresponding side baffle (242).

7. The air-floating nozzle with easily adjustable levelness according to claim 6, characterized in that, The side baffle (242) is provided with a plug hole. The outer wall of the inner end of the short connector (27) that is plugged into the plug hole is provided with an external thread. A nut is installed on the short connector (27) between the nozzle side plate (23) and the corresponding side baffle (242). Changing the connection position of the nut and the external thread can change the distance between the side baffle (242) and the corresponding nozzle side plate (23).

8. The air-floating nozzle with easily adjustable levelness according to any one of claims 1-3, characterized in that, The mounting base beam (11) has a first air inlet (14), and the mounting base beam (11) has an annular extension plate (15) extending toward the nozzle body (2) around the first air inlet (14). The nozzle beam (21) has a second air inlet (212), and the nozzle beam (21) has an annular movable plate (29) around the second air inlet (212) and a sealing ring (6) surrounding the annular movable plate (29). The sealing ring (6) is located between the annular extension plate (15) and the annular movable plate (29), and the sealing ring (6) is connected to the annular extension plate (15).

9. A readily adjustable air-floating nozzle system for drying parts to be dried, characterized in that, The device includes a positive nozzle located above the part to be dried and blowing air toward the upper surface of the part to be dried, and an inverted nozzle located below the part to be dried and blowing air toward the lower surface of the part to be dried. The positive nozzle is an air-floating nozzle that can be easily adjusted for level according to any one of claims 1-8. The inverted nozzle includes an air-floating nozzle that can be easily adjusted for level according to any one of claims 1-8 and four anti-reverse members (13). The anti-reverse members (13) are fixedly connected to the connecting rod (4) of the air-floating nozzle. The mounting beam (11) of the air-floating nozzle is located between the head (41) and the anti-reverse members (13).

10. A coating machine, characterized in that, The invention includes a drying chamber and an air-floating nozzle system with adjustable level as described in claim 9, wherein the air-floating nozzle system is disposed inside the drying chamber.

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