Air knife assembly structure and coating machine

Abstract

The utility model relates to the technical field of lithium battery pole piece manufacturing, and discloses an air knife assembly structure and a coating machine. The air knife assembling structure comprises a fixing assembly and a connecting assembly, the fixing assembly comprises a pair of oppositely-arranged fixing blocks, and the pair of fixing blocks are located at the two ends of an air knife respectively and connected with the end of the air knife; the connecting assembly comprises a pair of connecting parts, the connecting parts correspond to the fixing blocks one to one, one ends of the connecting parts abut against the lower surfaces of the fixing blocks and are used for supporting the fixing blocks, the connecting parts are detachably connected with the fixing blocks through first fasteners, and the other ends of the connecting parts are suitable for being connected with a mounting frame of the coating machine. The fixing block connected with the air knife is placed on the connecting part, and the fixing block is detachably connected with the connecting part through the first fastener, so that the convenience of dismounting and mounting the air knife can be effectively improved, and the labor cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery pole piece manufacturing, in particular to an air knife assembly structure and a coating machine. Background Technique

[0002] Generally, the air knife is fixed on the mounting frame of the coating machine by screws. During the process of disassembling and assembling the air knife on the coating machine, two people need to cooperate with each other. One person uses an inner hexagon wrench to loosen or lock the screws of the air knife, and the other person assists in the disassembly and assembly, holding the air knife. If the air knife is not held firmly during the disassembly and assembly process, the air knife will hit the marble, thereby damaging the marble and even hitting people's feet, posing a risk. Content of the Utility Model

[0003] In view of this, the utility model provides an air knife assembly structure and a coating machine to solve the problem that the disassembly and assembly process of the air knife in the prior art is time-consuming and laborious.

[0004] In the first aspect, the utility model provides an air knife assembly structure, including:

[0005] A fixing component, including a pair of oppositely arranged fixing blocks, and the pair of fixing blocks are respectively located at both ends of the air knife and are connected to the end of the air knife;

[0006] A connecting component, including a pair of connecting parts, and the pair of connecting parts correspond to the pair of fixing blocks one by one. One end of the connecting part abuts against the lower surface of the fixing block and is used to support the fixing block, and is detachably connected to the fixing block through a first fastener. The other end of the connecting part is adapted to be connected to the mounting frame of the coating machine.

[0007] Beneficial effects: Since the fixing block is connected to the air knife, after the pair of fixing blocks are respectively arranged on the corresponding connecting parts, the self-weight of the air knife can be evenly dispersed to the connecting parts. In this way, not only can the labor intensity of the staff be reduced, but also the possibility of the air knife falling off the connecting part during the disassembly and assembly process can be reduced. Secondly, since the fixing block and the connecting part are detachably connected through the first fastener, when the air knife needs to be maintained or replaced, the staff only needs to simply loosen the first fastener to remove the air knife together with the fixing block from the connecting part, without complex disassembly steps and long disassembly time. Similarly, if the air knife is to be assembled to the coating machine, after placing the fixing block connected to the air knife on the connecting part, only need to tighten the first fastener to firmly fix the air knife on the coating machine.

[0008] In an alternative embodiment, the fixing block includes a first fixing portion and a second fixing portion arranged at an angle. The first fixing portion is located on the top surface of the air knife and is connected to the top surface of the air knife. The second fixing portion is located at the end of the air knife. The lower surface of the second fixing portion abuts against the connecting portion and is detachably connected to the connecting portion by the first fastener.

[0009] Beneficial effects: In the present utility model, the first fixing portion and the second fixing portion are arranged at an angle. On the one hand, it can make the shape of the fixing block adapt to the shape of the end of the air knife, enabling the staff to simply and quickly fix the fixing block at the designated position of the air knife, shortening the time consumed for installation and positioning. On the other hand, it can improve the structural strength of the fixing block, ensuring that the air knife can be stably fixed on the coater through the fixing block. In addition, connecting the first fixing portion to the top surface of the air knife enables the fixing block and the air knife to form an integral structure. Further, abutting the lower surface of the second fixing portion against the connecting portion allows the connecting portion to bear the entire weight of the fixing block and the air knife, reducing the labor intensity of the staff. Furthermore, detachably connecting the second fixing portion to the connecting portion by the first fastener makes the installation, disassembly, and maintenance of the air knife more convenient and fast. In this way, not only can time costs and labor costs be effectively saved, but also it is convenient to regularly inspect and clean the air knife, ensuring that the air knife can operate efficiently for a long time.

[0010] In an alternative embodiment, a through hole is provided on the second fixing portion, and a threaded hole communicating with the through hole is provided on the connecting portion; the first fastener is a knurled knob, and the threaded rod of the knurled knob passes through the through hole and is threadedly connected to the threaded hole.

[0011] Beneficial effects: In the present utility model, through the cooperation of the threaded hole and the threaded rod of the knurled knob, the second fixing portion can be fixed to the connecting portion, that is, the air knife can be stably fixed on the mounting bracket of the coater. Secondly, since the knurled knob is a standard part, selecting the knurled knob as the fastener can not only reduce the procurement cost but also shorten the downtime for subsequent maintenance. In addition, since the knurled knob is provided with a gripping portion, the operation convenience can also be improved.

[0012] In an alternative embodiment, the hole wall of the through hole communicates with the side wall of the second fixing portion and forms a groove; the gripping portion of the knurled knob is located above the second fixing portion, and the threaded rod of the knurled knob passes through the groove and is connected to the threaded hole.

[0013] Beneficial effects: By providing a groove on the second fixing part, on the one hand, it is convenient for the staff to simply and quickly pass the threaded rod of the embossing knob through the groove and thread it with the threaded hole on the connecting part; on the other hand, it is convenient for the staff to simply and quickly match and position the threaded rod of the embossing knob with the threaded hole on the connecting part. In this way, not only can the time consumed in the assembly process be shortened, but also the influence of processing errors on the assembly can be reduced.

[0014] In an alternative embodiment, one of the second fixing part and the connecting part is provided with a limiting protrusion, and the other is provided with a limiting groove that cooperates with the limiting protrusion.

[0015] Beneficial effects: By providing a limiting protrusion and a limiting groove between the connection of the second fixing part and the connecting part, on the one hand, it is convenient for the staff to determine the relative position of the second fixing part and the connecting part according to the preset requirements in a short time, improving the smoothness of screwing the embossing knob with the threaded hole; on the other hand, through the mutual cooperation of the limiting protrusion and the limiting groove, it can play a certain role in limiting the relative position of the second fixing part and the connecting part, that is, it can ensure that the relative position of the second fixing part and the connecting part does not move relative to each other during the disassembly and assembly process of the second fixing part and the connecting part. In this way, not only the auxiliary operations of the staff during the disassembly and assembly process are reduced, but also the disassembly and assembly efficiency is improved.

[0016] In an alternative embodiment, clamping blocks are provided on opposite sides of the air knife, and the clamping blocks are connected to the first fixing part and the air knife through second fasteners.

[0017] Beneficial effects: By adding clamping blocks to the air knife and using second fasteners to fix the clamping blocks to the first fixing part and the air knife, the connection stability between the air knife and the first fixing part can be further improved, so that the air knife always maintains a stable working state during operation, reducing accidental shutdowns caused by loosening or falling off of the connection, and ensuring that the air knife can operate continuously and stably.

[0018] In an alternative embodiment, the clamping block is provided with a U-shaped countersunk hole, and the second fastener passes through the U-shaped countersunk hole and connects the first fixing part and the air knife.

[0019] Beneficial effects: By providing a U-shaped countersunk hole on the clamping block, on the one hand, the head of the second fastener can be completely sunk into the U-shaped countersunk hole, improving the aesthetics; on the other hand, the relative position of the second fastener and the U-shaped countersunk hole can be adjusted flexibly, so that the coaxiality of the second fastener and the corresponding hole on the air knife or the first fixing part can be ensured, reducing the influence brought by processing errors.

[0020] In an alternative embodiment, the connecting component further includes an indicating block and an angle scale disk rotatably connected to the indicating block. A pointer cooperating with the angle scale disk is provided on the indicating block and fixedly connected to the connecting portion, and the angle scale disk is connected to the mounting frame of the coater.

[0021] Advantageous effects: By providing a pointer on the indicating block, an angle scale disk on the mounting frame of the coater, and rotatably connecting the indicating block to the angle scale disk, the present utility model facilitates the staff to adjust the air outlet angle of the air knife according to actual needs, thereby improving the efficiency of drying the electrode sheet coating.

[0022] In an alternative embodiment, an arc-shaped hole is provided on the indicating block, and a positioning hole is provided on the angle scale disk. The arc-shaped hole and the positioning hole are adapted to be connected by a locking member.

[0023] Advantageous effects: By the combined use of the arc-shaped hole, the positioning hole and the locking member, the present utility model can lock the air outlet of the air knife at a specified angle, and further ensure that the air knife always works at this angle. In this way, the accuracy and consistency of the drying or coating process are improved.

[0024] In a second aspect, the present utility model further provides a coater, including:

[0025] A mounting frame;

[0026] The above-mentioned air knife assembly structure, and one end of the connecting portion away from the fixed block is connected to the mounting frame.

[0027] Advantageous effects: By adopting the above-mentioned air knife assembly structure, the coater of the present utility model can not only effectively reduce the auxiliary work of the staff and lower the labor intensity of the staff, but also improve the convenience and safety of disassembling and assembling the air knife, and reduce the disassembly and assembly time. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0029] Figure 1 It is a schematic structural diagram of an air knife assembly structure according to an embodiment of the present utility model;

[0030] Figure 2 is Figure 1 a schematic structural diagram of the shown fixing component;

[0031] Figure 3 is Figure 1 a schematic structural diagram of the connection component shown;

[0032] Figure 4 is a partial structural schematic diagram of a wind knife assembly structure according to an embodiment of the present invention;

[0033] Figure 5 is a schematic structural diagram of the knurled knob in the embodiment of the present invention;

[0034] Figure 6 is a partial cross-sectional schematic diagram of a wind knife assembly structure according to an embodiment of the present invention.

[0035] Description of the reference numerals:

[0036] 1. Fixed component; 101. Fixed block; 1011. First fixing part; 1012. Second fixing part; 10121. Groove; 10122. Limit groove; 2. Connection component; 201. Connection part; 2011. Threaded hole; 2012. Limit protrusion; 202. Indicator block; 2021. Pointer; 2022. Arc-shaped hole; 203. Angle scale; 2031. Positioning hole; 3. First fastener; 301. Knurled knob; 4. Blocking block; 401. U-shaped counterbore; 5. Wind knife. Detailed implementation manners

[0037] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] Aiming at the problem that the disassembly and assembly process of the wind knife in the prior art is time-consuming and laborious, the present invention provides a wind knife assembly structure and a coating machine.

[0039] Next, with reference to Figures 1 to 6 , the embodiments of the present invention will be described.

[0040] According to an embodiment of the present invention, on the one hand, as shown in Figure 1 , Figure 4 and Figure 6 , a wind knife assembly structure is provided, including: a fixed component 1 and a connection component 2.

[0041] Specifically, the fixing component 1 includes a pair of oppositely arranged fixing blocks 101, and the pair of fixing blocks 101 are respectively located at both ends of the air knife 5 and connected to the end portions of the air knife 5; the connecting component 2 includes a pair of connecting portions 201, and the pair of connecting portions 201 correspond to the pair of fixing blocks 101 one by one. One end of the connecting portion 201 abuts against the lower surface of the fixing block 101 and is used to support the fixing block 101, and is detachably connected to the fixing block 101 through the first fastener 3. The other end of the connecting portion 201 is adapted to be connected to the mounting frame of the coater.

[0042] Since the fixing block 101 is connected to the air knife 5, after the pair of fixing blocks 101 are respectively arranged on the corresponding connecting portions 201, the self-weight of the air knife 5 can be evenly dispersed to the connecting portions 201. In this way, not only can the labor intensity of the staff be reduced, but also the possibility of the air knife 5 falling off the connecting portion 201 during disassembly and assembly can be reduced. Secondly, since the fixing block 101 and the connecting portion 201 are detachably connected through the first fastener 3, when the air knife 5 needs to be maintained or replaced, the staff only needs to simply loosen the first fastener 3 to remove the air knife 5 together with the fixing block 101 from the connecting portion 201, without complex disassembly steps and long disassembly time. Similarly, if the air knife 5 is to be assembled to the coater, after placing the fixing block 101 connected to the air knife 5 on the connecting portion 201, only by tightening the first fastener 3, the air knife 5 can be firmly fixed on the coater.

[0043] According to an embodiment of the present invention, as Figure 2As shown, the fixing block 101 includes a first fixing portion 1011 and a second fixing portion 1012 arranged at an angle. The first fixing portion 1011 is located on the top surface of the air knife 5 and is connected to the top surface of the air knife 5. The second fixing portion 1012 is located at the end of the air knife 5. The lower surface of the second fixing portion 1012 abuts against the connecting portion 201 and is detachably connected to the connecting portion 201 through a first fastener 3. In the embodiment of the present utility model, the first fixing portion 1011 and the second fixing portion 1012 are arranged at an angle. On the one hand, it can make the shape of the fixing block 101 adapt to the shape of the end of the air knife 5, enabling the staff to simply and quickly fix the fixing block 101 at the designated position of the air knife 5, shortening the time consumed for installation and positioning. On the other hand, it can improve the structural strength of the fixing block 101, ensuring that the air knife 5 can be stably fixed on the coater through the fixing block 101. In addition, connecting the first fixing portion 1011 to the top surface of the air knife 5 enables the fixing block 101 and the air knife 5 to form an integral structure. Further, abutting the lower surface of the second fixing portion 1012 against the connecting portion 201 can make the connecting portion 201 bear the total weight of the fixing block 101 and the air knife 5, reducing the labor intensity of the staff. Furthermore, detachably connecting the second fixing portion 1012 to the connecting portion 201 through the first fastener 3 can make the installation, disassembly, and maintenance of the air knife 5 more convenient and fast. In this way, not only can time costs and labor costs be effectively saved, but also it is convenient to regularly inspect and clean the air knife 5, ensuring that the air knife 5 can operate efficiently for a long time.

[0044] It should be noted that in this embodiment, the first fixing portion 1011 can be connected to the top surface of the air knife 5 through a fastener such as a bolt. In this way, the convenience of subsequent maintenance and replacement of the air knife 5 or the fixing block 101 can be improved.

[0045] According to an embodiment of the present utility model, a through hole is provided on the second fixing portion 1012, and a threaded hole 2011 communicating with the through hole is provided on the connecting portion 201; the first fastener 3 is a knurled knob 301, and the threaded rod of the knurled knob 301 passes through the through hole and is threadedly connected to the threaded hole 2011. Through the cooperation of the threaded hole 2011 and the threaded rod of the knurled knob 301 in the embodiment of the present utility model, the second fixing portion 1012 can be fixed on the connecting portion 201, that is, the air knife 5 can be stably fixed on the mounting bracket of the coater. Secondly, since the knurled knob 301 is a standard part, selecting the knurled knob 301 as the fastener can not only reduce the procurement cost but also shorten the downtime for subsequent maintenance. In addition, since the knurled knob 301 is provided with a self - holding portion, the convenience of operation can also be improved.

[0046] According to an embodiment of the present utility model, the hole wall of the through hole communicates with the side wall of the second fixing portion 1012 to form a groove 10121; the holding portion of the knurled knob 301 is located above the second fixing portion 1012, and the threaded rod of the knurled knob 301 passes through the groove 10121 and is connected to the threaded hole 2011 on the connecting portion 201. By providing a groove on the second fixing portion 1012 in the embodiment of the present utility model, on the one hand, it is convenient for the staff to simply and quickly pass the threaded rod of the knurled knob 301 through the groove 10121 and thread it with the threaded hole 2011 on the connecting portion 201; on the other hand, it is convenient for the staff to simply and quickly match and position the threaded rod of the knurled knob 301 with the threaded hole 2011 on the connecting portion 201. In this way, not only can the time consumed in the assembly process be shortened, but also the influence of processing errors on the assembly can be reduced.

[0047] In a specific embodiment, the opening direction of the notch of the groove 10121 is perpendicular to the length direction of the air knife 5. In this way, it is possible to prevent other structures on the periphery of the air knife 5 from interfering with the notch of the groove 10121 and ensure the smoothness of the knurled knob 301 entering and exiting the groove 10121.

[0048] To reduce the manufacturing difficulty and the convenience of subsequent operations, the threaded hole 2011 can be extended along the height direction of the air knife 5. In this way, in the assembled state, the knurled knob 301 will also extend along the height direction of the air knife 5. Therefore, in the above case, the holding portion of the knurled knob 301 can be located below the connecting portion 201 or above the second fixing portion 1012, as long as the holding portion of the knurled knob 301 does not interfere with the structures on its periphery.

[0049] It should be noted that the present utility model expresses the height direction of the air knife 5 in the direction shown in Figure 1 the figure.

[0050] According to an embodiment of the present utility model, one of the second fixing portion 1012 and the connecting portion 201 is provided with a limiting protrusion 2012, and the other is provided with a limiting groove 10122 that cooperates with the limiting protrusion 2012. By providing the limiting protrusion 2012 and the limiting groove 10122 between the connection of the second fixing portion 1012 and the connecting portion 201 in the embodiment of the present utility model, on the one hand, it is convenient for the staff to determine the relative positions of the second fixing portion 1012 and the connecting portion 201 according to the preset requirements in a short time, and improve the smoothness of the screwing of the embossing knob 301 and the threaded hole 2011; on the other hand, through the mutual cooperation of the limiting protrusion 2012 and the limiting groove 10122, it can play a certain role in limiting the relative positions of the second fixing portion 1012 and the connecting portion 201, that is, it can ensure that the relative positions of the second fixing portion 1012 and the connecting portion 201 do not undergo relative movement during the disassembly and assembly process of the second fixing portion 1012 and the connecting portion 201. In this way, not only the auxiliary operations of the staff during the disassembly and assembly process are reduced, but also the disassembly and assembly efficiency is improved.

[0051] In a specific embodiment, as Figure 2 and Figure 3 shown, a limiting groove 10122 is provided on the side of the second fixing portion 1012 facing the connecting portion 201, and a limiting protrusion 2012 that is adapted to the limiting groove 10122 is provided on the side of the connecting portion 201 facing the second fixing portion 1012. Specifically, the bottom of the limiting groove 10122 is communicated with the threaded hole 2011 on the second fixing portion 1012, and the limiting protrusion 2012 is communicated with the threaded hole 2011 on the connecting portion 201.

[0052] According to an embodiment of the present utility model, as Figure 1 、 Figure 4 and Figure 6 shown, clamping blocks 4 are provided on opposite sides of the air knife 5, and the clamping blocks 4 are connected to the first fixing portion 1011 and the air knife 5 through second fasteners. By adding the clamping blocks 4 to the air knife 5 and fixing the clamping blocks 4 to the first fixing portion 1011 and the air knife 5 by using the second fasteners in the embodiment of the present utility model, the connection stability between the air knife 5 and the first fixing portion 1011 can be further improved, so that the air knife 5 always maintains a stable working state during the working process, reducing accidental shutdowns caused by loose or detached connections, and ensuring that the air knife 5 can operate continuously and stably.

[0053] According to an embodiment of the present utility model, as Figure 1 、 Figure 4 and Figure 6As shown, the retaining block 4 is provided with a U-shaped countersunk hole 401, and the second fastener is passed through the U-shaped countersunk hole 401 to connect the first fixing portion 1011 and the air knife 5. In the embodiment of the present utility model, by providing the U-shaped countersunk hole 401 on the retaining block 4, on the one hand, the head of the second fastener can be completely sunk into the U-shaped countersunk hole 401 to improve the aesthetics; on the other hand, the relative position of the second fastener and the U-shaped countersunk hole 401 can be adjusted flexibly, so as to ensure the coaxiality of the second fastener and the corresponding hole on the air knife 5 or the first fixing portion 1011, and reduce the influence brought by processing errors.

[0054] It should be noted that the number of U-shaped countersunk holes 401 on the retaining block 4 in this embodiment can be, but is not limited to, two, three or four. Exemplarily, the retaining block 4 is provided with four U-shaped countersunk holes 401, and the four U-shaped countersunk holes 401 are arranged in pairs opposite to each other. Among them, the two U-shaped countersunk holes 401 located above are connected to the first fixing portion 1011 through the second fastener, and the two U-shaped countersunk holes 401 located below are connected to the air knife 5 through the second fastener.

[0055] It should be added that the second fastener can be a bolt or a screw.

[0056] According to an embodiment of the present utility model, as Figure 1 and Figure 3 shown, the connecting assembly 2 further includes an indicating block 202 and an angle scale 203 rotatably connected to the indicating block 202. The indicating block 202 is provided with a pointer 2021 cooperating with the angle scale 203 and is fixedly connected to the connecting portion 201, and the angle scale 203 is connected to the mounting bracket of the coater. In the embodiment of the present utility model, by providing the pointer 2021 on the indicating block 202, providing the angle scale 203 on the mounting bracket of the coater, and rotatably connecting the pointer 2021 and the angle scale 203, it is convenient for the staff to adjust the air outlet angle of the air knife 5 according to actual needs, and improve the efficiency of drying the electrode sheet coating.

[0057] According to an embodiment of the present utility model, as Figure 1 and Figure 3 shown, the indicating block 202 is provided with an arc-shaped hole 2022, and the angle scale 203 is provided with a positioning hole 2031. The arc-shaped hole 2022 and the positioning hole 2031 are adapted to be connected by a locking member. In the embodiment of the present utility model, through the cooperation of the arc-shaped hole 2022, the positioning hole 2031 and the locking member, the air outlet of the air knife 5 can be locked at a specified angle, and further it can be ensured that the air knife 5 always works at this angle. In this way, the accuracy and consistency of the drying or coating process are improved.

[0058] It should be noted that the pointer 2021 on the indicating block 202 can be located above or below the connecting portion 201. Similarly, to ensure the effective cooperation between the angle dial 203 and the pointer 2021, the position of the angle dial 203 needs to be adjusted accordingly according to the position of the pointer 2021.

[0059] In a specific embodiment, as Figure 1 and Figure 3 shown, the pointer 2021 on the indicating block 202 and the angle dial 203 are both located above the connecting portion 201, and the position of the arc-shaped hole 2022 on the indicating block 202 is higher than the second fixing portion 1012. Therefore, when the holding portion of the embossing knob 301 is located above the second fixing portion 1012, it is necessary to make the side of the pointer 2021 close to the second fixing portion 1012 tilt away from the embossing knob 301. In this way, not only can the interference between the holding portion of the embossing knob 301 and the pointer 2021 be avoided, but also the possibility that the staff will be scratched by the pointer 2021 during the process of rotating the embossing knob 301 can be reduced.

[0060] According to an embodiment of the present invention, on the other hand, a coating machine is also provided, including: a mounting frame and the above-mentioned air knife assembly structure. Specifically, one end of the connecting portion 201 of the air knife assembly structure away from the fixed block 101 is connected to the mounting frame. By adopting the above-mentioned air knife assembly structure, the coating machine according to the embodiment of the present invention can not only effectively reduce the auxiliary work of the staff and reduce the labor intensity of the staff, but also improve the convenience and safety of the disassembly and assembly of the air knife 5 and reduce the disassembly and assembly time.

[0061] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An air knife assembly structure, characterized in that, Comprising: A fixing component (1), including a pair of oppositely arranged fixing blocks (101), and a pair of said fixing blocks (101) are respectively located at both ends of the air knife (5) and are connected to the end of the air knife (5); A connecting component (2), including a pair of connecting parts (201), and a pair of said connecting parts (201) correspond to a pair of said fixing blocks (101) one by one. One end of the connecting part (201) abuts against the lower surface of the fixing block (101) and is used to support the fixing block (101), and is detachably connected to the fixing block (101) by a first fastener (3). The other end of the connecting part (201) is adapted to be connected to the mounting rack of the coater.

2. The air knife assembly structure according to claim 1, characterized in that, The fixing block (101) includes a first fixing part (1011) and a second fixing part (1012) arranged at an angle. The first fixing part (1011) is located on the top surface of the air knife (5) and is connected to the top surface of the air knife (5). The second fixing part (1012) is located at the end of the air knife (5). The lower surface of the second fixing part (1012) abuts against the connecting part (201) and is detachably connected to the connecting part (201) by the first fastener (3).

3. The air knife assembly structure according to claim 2, characterized in that, A through hole is provided on the second fixing part (1012), and a threaded hole (2011) communicating with the through hole is provided on the connecting part (201); the first fastener (3) is a knurled knob (301), and the threaded rod of the knurled knob (301) passes through the through hole and is threadedly connected to the threaded hole (2011).

4. The air knife assembly structure according to claim 3, characterized in that, The hole wall of the through hole communicates with the side wall of the second fixing part (1012) to form a groove (10121); the holding part of the knurled knob (301) is located above the second fixing part (1012), and the threaded rod of the knurled knob (301) passes through the groove (10121) and is connected to the threaded hole (2011).

5. The air knife assembly structure according to claim 2, wherein, One of the second fixing part (1012) and the connecting part (201) is provided with a limiting protrusion (2012), and the other is provided with a limiting groove (10122) matching with the limiting protrusion (2012).

6. The air knife assembly structure according to any one of claims 2 to 5, characterized in that, Blocking blocks (4) are provided on opposite sides of the air knife (5), and the blocking blocks (4) are connected to the first fixing part (1011) and the air knife (5) by second fasteners.

7. The air knife assembly structure according to claim 6, characterized in that, The blocking block (4) is provided with a U-shaped countersunk hole (401), and the second fastener is inserted into the U-shaped countersunk hole (401) to connect the first fixing part (1011) and the air knife (5).

8. The air knife assembly structure according to any one of claims 1 to 5, characterized in that, The connecting component (2) further includes an indicating block (202) and an angle scale (203) rotatably connected to the indicating block (202). The indicating block (202) is provided with a pointer (2021) matching with the angle scale (203) and is fixedly connected to the connecting part (201). The angle scale (203) is connected to the mounting rack of the coater.

9. The air knife assembly structure according to claim 8, characterized in that, An arc-shaped hole (2022) is provided on the indicated block (202), and a positioning hole (2031) is provided on the angle dial (203). The arc-shaped hole (2022) and the positioning hole (2031) are adapted to be connected by a locking member.

10. A coater, characterized in that, Comprising: A mounting bracket; The air knife assembly structure according to any one of claims 1 to 9, wherein one end of the connecting portion (201) away from the fixed block (101) is connected to the mounting bracket.

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