A coating machine with stable coating thickness

Abstract

The utility model discloses a kind of coating thickness stable coating machine, including coating frame and unwinding mechanism, the outside of the coating frame is provided with unwinding mechanism, the outside of the coating frame far from unwinding mechanism side is provided with winding mechanism, the outer wall of the coating frame is installed with support cylinder, the outer wall of the coating frame on the side of support cylinder is symmetrically installed with support frame, the outer wall of the coating frame far from support cylinder side is installed with screw rod moving assembly, the inside of the support cylinder is slidably installed with lifting arm. The utility model not only realizes the reciprocating movement coating of coating machine to material, facilitates the elastic scraping of the excess coating on the surface of material, facilitates the thickness of coating, facilitates the collection of the excess coating on the surface of material, and facilitates the drying of coating machine material, improves the convenience of material drying.

Description

Technical Field

[0001] This utility model relates to the field of coating machine technology, specifically a coating machine with stable coating thickness. Background Technology

[0002] A coating machine is a device used to form a uniform coating on the surface of a substrate. It uses methods such as rotation and spraying to evenly cover the surface of an object with liquid materials. It is mainly used to form a uniform coating on the surface of a substrate. The process includes rotation coating, spraying, etc. It can be applied to textile, electronics, optics and other fields, and is used for drying and coating after printing and dyeing to improve wear resistance and easy cleaning.

[0003] As disclosed in the authorization announcement number CN113522641A, a coating machine that can control the coating thickness of the coating head by using unwinding cleanroom cloth is provided on the machine base, and a driving device for moving the coating machine is installed on the machine base. The coating machine body is equipped with a coating head and a cleanroom cloth module. The cleanroom cloth module includes an unwinding roller, a winding roller and a cleanroom cloth wound on the unwinding roller and the winding roller, and the cleanroom cloth passes around the lip of the coating head.

[0004] Although it achieves the goal of moving the coating machine towards the workpiece on the coating platform by driving the driving device, and the coating material sprayed from the lip of the coating head wets the continuously unwound cleanroom cloth, and then presses it against the surface of the workpiece to form a coating film with uniform thickness, the coating material can be replenished at fixed points during the coating process, so that the cleanroom cloth is kept wet and the amount of coating is fixed and uniform. After each coating, the cleanroom cloth can be rolled up so that the crystals produced will not remain, which can further ensure the quality of coating.

[0005] However, this does not solve the problem that existing coating machines of this type are generally not conducive to convenient reciprocating movement of materials for coating, are not convenient to elastically scrape off excess coating from the material surface, are not convenient to stably ensure the coating thickness, are not convenient to collect excess coating from the material surface, and are not convenient to dry the coated material, thus affecting the convenience of drying materials. Utility Model Content

[0006] The purpose of this utility model is to provide a coating machine with stable coating thickness, so as to solve the problems mentioned in the background art, such as the inconvenience of coating machines for convenient reciprocating movement of materials for coating, the inconvenience of elastically scraping off excess coating from the material surface, the inconvenience of ensuring stable coating thickness, the inconvenience of collecting excess coating from the material surface, and the inconvenience of convenient drying of materials by the coating machine, which affect the convenience of drying materials.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a coating machine with stable coating thickness, comprising a coating frame and an unwinding mechanism. The unwinding mechanism is located outside the coating frame, and a winding mechanism is located on the side of the coating frame away from the unwinding mechanism. A support cylinder is installed on the outer wall of the coating frame. Support frames are symmetrically installed on the outer wall of the coating frame on one side of the support cylinder. A screw moving assembly is installed on the outer wall of the coating frame away from the support cylinder. A lifting arm is slidably installed inside the support cylinder, extending to the outside of the support cylinder. A moving frame is installed on the outer wall of the lifting arm. A storage box is installed at the top of the moving frame. A servo motor is installed on the outer wall of the moving frame away from the lifting arm. A reciprocating threaded rod is installed at the output end of the servo motor, extending into the interior of the moving frame. A reciprocating threaded sleeve is fitted onto the surface of the reciprocating threaded rod, and a nozzle is installed at the bottom end of the reciprocating threaded sleeve.

[0008] Preferably, a first water pump is installed on the outer wall of the storage tank, and a discharge pipe is installed on the outer wall of the first water pump. One end of the discharge pipe extends into the interior of the first water pump, and the other end extends into the interior of the nozzle. A rotating shaft is movably installed between the two sides of the support frame, and the rotating shaft extends to the outside of the support frame. An adjusting arm is fitted on the surface of the rotating shaft on one side of the support frame. A bushing is movably installed on the outer wall of the support frame above the adjusting arm. A sliding rod is installed on the outer wall of the bushing, and the sliding rod is slidably connected to the adjusting arm. A spring is fitted on the surface of the sliding rod, and one end of the spring is connected to the sliding rod, and the other end of the spring is connected to the adjusting arm. A scraper is installed at the bottom end of the rotating shaft.

[0009] Preferably, a circulation box is installed on the side wall of the coating rack, and a limit frame is installed on the outer wall of the coating rack on one side of the circulation box.

[0010] Preferably, a second water pump is installed on the outer wall of the coating frame on one side of the limiting frame, and a delivery pipe is installed on the outer wall of the second water pump. One end of the delivery pipe extends into the interior of the circulation tank, and the other end of the delivery pipe extends into the interior of the second water pump.

[0011] Preferably, an extraction pipe is installed on the outer wall of the second water pump on the side away from the delivery pipe, and the extraction pipe extends into the interior of the second water pump and is connected to the limiting frame.

[0012] Preferably, stepper motors are symmetrically installed inside the support cylinder below the lifting arm, and each stepper motor has an adjusting threaded rod installed at its output end.

[0013] Preferably, the surface of the adjusting threaded rod is fitted with an adjusting threaded sleeve, and a drive plate is installed between the two sides of the adjusting threaded sleeve, and the drive plate is connected to the lifting arm.

[0014] Preferably, a transmission frame is mounted on the top of the lead screw moving assembly, a drive frame is slidably mounted on the outer wall of the transmission frame, and a slide rail is mounted on the outer wall of the transmission frame on one side of the drive frame.

[0015] Preferably, a slider is slidably mounted on the outer wall of the slide rail, and the slider is connected to the drive frame. A cylinder is mounted on the outer wall of the transmission frame below the slide rail, and the output end of the cylinder is connected to the drive frame. Multiple sets of drying fans with equal spacing are mounted on the outer wall of the drive frame.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the coating machine not only realizes convenient reciprocating moving coating of materials, but also facilitates the elastic scraping of excess coating on the material surface, ensures stable coating thickness, and facilitates the collection of excess coating on the material surface, but also facilitates convenient drying of the coated materials, thus improving the convenience of material drying.

[0017] (1) Turn on two sets of stepper motors to facilitate the stepper motors to drive the nozzle to a suitable height. The servo motor drives the reciprocating threaded rod to rotate. The reciprocating threaded rod drives the reciprocating threaded sleeve to move back and forth. The reciprocating threaded sleeve drives the nozzle to move back and forth. The first water pump delivers the paint inside the storage box to the inside of the nozzle through the discharge pipe. Turn on the nozzle to facilitate the nozzle to easily move and coat the material. Turn on the winding mechanism to wind up the coated material. When the material moves to the side of the scraper, under the support of the support frame on the bushing, the bushing supports the sliding rod. Under the support of the spring, the spring elastically drives the adjusting arm to rotate around the rotating shaft. The sliding rod provides sliding support for the adjusting arm. The adjusting arm elastically drives the rotating shaft to rotate. The rotating shaft elastically drives the scraper to rotate, so that the scraper can elastically scrape off the excess paint on the material surface, so as to conveniently and stably ensure the thickness of the coating. This realizes the coating machine to easily move and coat the material, facilitates the elastic scraping of excess paint on the material surface, facilitates the stable assurance of the coating thickness, and improves the quality of the material coating.

[0018] (2) The stepper motor drives the adjusting threaded rod to rotate, the adjusting threaded rod drives the adjusting threaded sleeve to move, the two sets of adjusting threaded sleeves drive the drive plate to move, the drive plate drives the lifting arm to move, and the lifting arm drives the moving frame, storage box, servo motor, reciprocating threaded rod, reciprocating threaded sleeve, and nozzle for convenient adjustment. When it is necessary to collect the excess coating scraped off by the scraper, the second water pump transports the excess coating on the material surface to the inside of the circulation box through the extraction pipe. The limit frame supports and limits the extraction pipe to facilitate the collection of excess coating on the material surface. This realizes convenient height adjustment of the coating position of the coating machine and facilitates the collection of excess coating on the material surface.

[0019] (3) The screw moving assembly drives the transmission frame to move, the transmission frame drives multiple sets of drying fans to move to the appropriate position, the cylinder drives the drive frame to move, the slider slides on the surface of the slide rail to provide sliding support for the drive frame, the drive frame drives multiple sets of drying fans to be conveniently adjusted to the appropriate height, and the multiple sets of drying fans are turned on to dry the coated material, realizing convenient drying of the coating machine material, facilitating convenient height adjustment of the material drying position, and improving the convenience of material drying. Attached Figure Description

[0020] Figure 1 This is a front view structural diagram of the present utility model; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the storage box of this utility model; Figure 4 This is a three-dimensional structural diagram of the lead screw moving assembly of this utility model; Figure 5 This is a three-dimensional structural diagram of the lifting arm of this utility model; Figure 6 This is a three-dimensional structural diagram of the circulation box of this utility model; Figure 7 This is a three-dimensional structural diagram of the scraper of this utility model.

[0021] In the diagram: 1. Coating frame; 2. Unwinding mechanism; 3. Rewinding mechanism; 4. Support cylinder; 5. Support frame; 6. Screw moving assembly; 7. Lifting arm; 8. Moving frame; 9. Storage box; 10. Servo motor; 11. Reciprocating threaded rod; 12. Reciprocating threaded sleeve; 13. Nozzle; 14. First water pump; 15. Discharge pipe; 16. Circulation box; 17. Conveying pipe; 18. Second water pump; 19. Limiting frame; 20. Extraction pipe; 21. Rotating shaft; 22. Adjusting arm; 23. Bushing; 24. Spring; 25. Sliding rod; 26. Drying fan; 27. Stepper motor; 28. Adjusting threaded sleeve; 29. ​​Adjusting threaded rod; 30. Drive plate; 31. Transmission frame; 32. Cylinder; 33. Drive frame; 34. Slide rail; 35. Slider; 36. Scraper. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 are not intended to indicate or imply that the device or component 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.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] Example 1 Please see Figure 1-7This utility model provides an embodiment of a coating machine with stable coating thickness, comprising a coating frame 1 and an unwinding mechanism 2. The unwinding mechanism 2 is provided on the outside of the coating frame 1, and a winding mechanism 3 is provided on the outside of the coating frame 1 away from the unwinding mechanism 2. A support cylinder 4 is installed on the outer wall of the coating frame 1, and support frames 5 are symmetrically installed on the outer wall of the coating frame 1 on one side of the support cylinder 4. A screw moving assembly 6 is installed on the outer wall of the coating frame 1 away from the support cylinder 4. A lifting arm 7 is slidably installed inside the support cylinder 4 and extends to the outside of the support cylinder 4. A movable frame 8 is installed on the outer wall of the lifting arm 7, and a storage box 9 is installed at the top of the movable frame 8. A servo motor 10 is installed on the outer wall of the movable frame 8 away from the lifting arm 7. A reciprocating threaded rod 11 is installed at the output end of the servo motor 10 and extends to the inside of the movable frame 8. A reciprocating thread is fitted on the surface of the reciprocating threaded rod 11. A nozzle 13 is installed at the bottom of a reciprocating threaded sleeve 12. A first water pump 14 is installed on the outer wall of a storage box 9. A discharge pipe 15 is installed on the outer wall of the first water pump 14, with one end of the discharge pipe 15 extending into the interior of the first water pump 14 and the other end extending into the interior of the nozzle 13. A rotating shaft 21 is movably installed between the two sides of a support frame 5, and the rotating shaft 21 extends to the outside of the support frame 5. An adjusting arm 22 is fitted on the surface of the rotating shaft 21 on one side of the support frame 5. A bushing 23 is movably installed on the outer wall of the support frame 5 above the adjusting arm 22. A sliding rod 25 is installed on the outer wall of the bushing 23, and the sliding rod 25 is slidably connected to the adjusting arm 22. A spring 24 is fitted on the surface of the sliding rod 25, with one end of the spring 24 connected to the sliding rod 25 and the other end of the spring 24 connected to the adjusting arm 22. A scraper 36 is installed at the bottom of the rotating shaft 21. The material to be coated is mounted on the surface of the unwinding mechanism 2, and one end of the material is pulled to the surface of the winding mechanism 3. Two sets of stepper motors 27 are turned on to facilitate the movement of the nozzle 13 to a suitable height. The servo motor 10 is turned on, and with the support of the moving frame 8, it drives the reciprocating threaded rod 11 to rotate. With the threaded connection between the reciprocating threaded rod 11 and the reciprocating threaded sleeve 12, the reciprocating threaded rod 11 drives the reciprocating threaded sleeve 12 to move back and forth. The moving frame 8 provides sliding support for the reciprocating threaded sleeve 12, which in turn drives the nozzle 13 to move back and forth. The first water pump 14 is turned on, and with the support of the storage tank 9, it delivers the coating material from inside the storage tank 9 to the inside of the nozzle 13 through the discharge pipe 15. The nozzle 13 is then turned on to facilitate convenient reciprocating coating of the material. The winding mechanism 3 is opened to wind up the coated material. When the material moves to the side of the scraper 36, the bushing 23 is supported by the support frame 5, and the sliding rod 25 is supported by the spring 24. The spring 24 elastically drives the adjusting arm 22 to rotate around the rotating shaft 21. The sliding rod 25 provides sliding support for the adjusting arm 22. The adjusting arm 22 elastically drives the rotating shaft 21 to rotate, and the rotating shaft 21 elastically drives the scraper 36 to rotate. This facilitates the scraper 36 to elastically scrape off excess coating from the material surface, thus ensuring a stable coating thickness. This achieves convenient reciprocating coating of the material by the coating machine, facilitates the elastic scraping of excess coating from the material surface, ensures a stable coating thickness, and improves the quality of the material coating. A circulation box 16 is installed on the side wall of the coating rack 1. A limit frame 19 is installed on the outer wall of the coating rack 1 on one side of the circulation box 16. A second water pump 18 is installed on the outer wall of the coating rack 1 on one side of the limit frame 19. A delivery pipe 17 is installed on the outer wall of the second water pump 18. One end of the delivery pipe 17 extends into the interior of the circulation box 16, and the other end of the delivery pipe 17 extends into the interior of the second water pump 18. An extraction pipe 20 is installed on the outer wall of the second water pump 18 on the side away from the delivery pipe 17. The extraction pipe 20 extends into the interior of the second water pump 18 and is connected to the limit frame 19. Stepper motors 27 are symmetrically installed inside the support cylinder 4 below the lifting arm 7. An adjusting threaded rod 29 is installed at the output end of each stepper motor 27. An adjusting threaded sleeve 28 is fitted on the surface of each adjusting threaded rod 29. A drive plate 30 is installed between the two sides of the adjusting threaded sleeve 28 and is connected to the lifting arm 7. When the height of nozzle 13 needs to be adjusted, two sets of stepper motors 27, supported by support cylinder 4, drive the adjusting threaded rod 29 to rotate. With the threaded connection between adjusting threaded rod 29 and adjusting threaded sleeve 28, adjusting threaded rod 29 drives adjusting threaded sleeve 28 to move. Two sets of adjusting threaded sleeves 28 drive drive plate 30 to move. Drive plate 30 drives lifting arm 7 to move. Lifting arm 7 drives moving frame 8, storage box 9, servo motor 10, reciprocating threaded rod 11, reciprocating threaded sleeve 12, and nozzle 13 for convenient adjustment. When it is necessary to collect the excess paint scraped by scraper 36, the second water pump 18 is turned on. Supported by coating frame 1, the second water pump 18 transports the excess paint on the material surface through extraction pipe 20 and conveying pipe 17 to the inside of circulation box 16. Limiting frame 19 supports and limits extraction pipe 20 to facilitate the collection of excess paint on the material surface. This realizes convenient height adjustment of coating position of coating machine and facilitates the collection of excess paint on material surface. A transmission frame 31 is installed at the top of the lead screw moving assembly 6. A drive frame 33 is slidably installed on the outer wall of the transmission frame 31. A slide rail 34 is installed on the outer wall of the transmission frame 31 on one side of the drive frame 33. A slider 35 is slidably installed on the outer wall of the slide rail 34 and is connected to the drive frame 33. A cylinder 32 is installed on the outer wall of the transmission frame 31 below the slide rail 34 and the output end of the cylinder 32 is connected to the drive frame 33. Multiple sets of drying fans 26 with equal spacing are installed on the outer wall of the drive frame 33. When the material moves to the area below the multiple sets of drying fans 26, the lead screw moving assembly 6 is activated. Supported by the coating frame 1, the lead screw moving assembly 6 drives the transmission frame 31 to move. The transmission frame 31 then drives the multiple sets of drying fans 26 to the appropriate position. The cylinder 32 is activated, and supported by the transmission frame 31, the cylinder 32 drives the drive frame 33 to move. The slider 35 slides on the surface of the slide rail 34 to provide sliding support for the drive frame 33. The drive frame 33 then drives the multiple sets of drying fans 26 to be easily adjusted to the appropriate height. The multiple sets of drying fans 26 are then activated to dry the coated material, thus achieving convenient drying of the coated material. This facilitates convenient height adjustment of the material drying position and improves the convenience of material drying.

[0026] Work steps The material to be coated is mounted on the surface of the unwinding mechanism 2, and one end of the material is pulled to the surface of the winding mechanism 3. Two sets of stepper motors 27 are activated to facilitate the movement of the nozzle 13 to a suitable height. The servo motor 10 drives the reciprocating threaded rod 11 to rotate, which in turn drives the reciprocating threaded sleeve 12 to move back and forth. The reciprocating threaded sleeve 12 then drives the nozzle 13 to move back and forth. The first water pump 14 delivers the coating material from the storage tank 9 to the nozzle 13 via the discharge pipe 15. The nozzle 13 is then activated to facilitate convenient reciprocating motion of the nozzle onto the material. The coating process involves opening the winding mechanism 3 to wind up the coated material. When the material moves to one side of the scraper 36, the support frame 5 provides movable support to the bushing 23, which in turn supports the sliding rod 25. The sliding rod 25, in turn, supports the spring 24. The spring 24 elastically drives the adjusting arm 22 to rotate around the rotating shaft 21. The sliding rod 25 provides sliding support to the adjusting arm 22, which in turn elastically drives the rotating shaft 21 to rotate. The rotating shaft 21 then elastically drives the scraper 36 to rotate, facilitating the scraper 36 to elastically remove excess coating from the material surface. The flexible scraping mechanism ensures a stable coating thickness. Stepper motor 27 drives adjusting threaded rod 29 to rotate, which in turn moves adjusting threaded sleeve 28. Two sets of adjusting threaded sleeves 28 move drive plate 30, which in turn moves lifting arm 7. Lifting arm 7 then moves moving frame 8, storage bin 9, servo motor 10, reciprocating threaded rod 11, reciprocating threaded sleeve 12, and nozzle 13 for convenient adjustment. When excess coating scraped by scraper 36 needs to be collected, second water pump 18 uses extraction pipe 20 to remove excess coating from the material surface. The conveying pipe 17 delivers the material to the inside of the circulation box 16. The limiting frame 19 supports and limits the extraction pipe 20 to facilitate the collection of excess coating on the surface of the material. When the material moves to the bottom of the multiple drying fans 26, the screw moving assembly 6 drives the transmission frame 31 to move. The transmission frame 31 drives the multiple drying fans 26 to move to the appropriate position. The cylinder 32 drives the drive frame 33 to move. The drive frame 33 drives the multiple drying fans 26 to be easily adjusted to the appropriate height. The multiple drying fans 26 are turned on to dry the coated material, thus completing the operation of the coating machine.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coating machine with stable coating thickness, characterized in that: The coating assembly includes a coating rack and an unwinding mechanism. The unwinding mechanism is located on the outside of the coating rack, and a winding mechanism is located on the side of the coating rack away from the unwinding mechanism. A support cylinder is mounted on the outer wall of the coating rack. Support frames are symmetrically mounted on the outer wall of the coating rack on one side of the support cylinder. A lead screw moving assembly is mounted on the outer wall of the coating rack away from the support cylinder. A lifting arm is slidably mounted inside the support cylinder and extends to the outside of the support cylinder. A moving frame is mounted on the outer wall of the lifting arm. A storage box is mounted at the top of the moving frame. A servo motor is mounted on the outer wall of the moving frame away from the lifting arm. A reciprocating threaded rod is mounted at the output end of the servo motor and extends to the inside of the moving frame. A reciprocating threaded sleeve is fitted onto the surface of the reciprocating threaded rod, and a nozzle is mounted at the bottom end of the reciprocating threaded sleeve.

2. The coating machine with stable coating thickness according to claim 1, characterized in that: A first water pump is installed on the outer wall of the storage tank. A discharge pipe is installed on the outer wall of the first water pump, with one end of the discharge pipe extending into the interior of the first water pump and the other end extending into the interior of the nozzle. A rotating shaft is movably installed between the two sides of the support frame, and the rotating shaft extends to the outside of the support frame. An adjusting arm is fitted on the surface of the rotating shaft on one side of the support frame. A bushing is movably installed on the outer wall of the support frame above the adjusting arm. A sliding rod is installed on the outer wall of the bushing, and the sliding rod is slidably connected to the adjusting arm. A spring is fitted on the surface of the sliding rod, with one end of the spring connected to the sliding rod and the other end connected to the adjusting arm. A scraper is installed at the bottom end of the rotating shaft.

3. A coating machine with stable coating thickness according to claim 2, characterized in that: A circulation box is installed on the side wall of the coating rack, and a limit frame is installed on the outer wall of the coating rack on one side of the circulation box.

4. A coating machine with stable coating thickness according to claim 3, characterized in that: A second water pump is installed on the outer wall of the coating frame on one side of the limiting frame. A delivery pipe is installed on the outer wall of the second water pump, with one end of the delivery pipe extending into the interior of the circulation tank and the other end of the delivery pipe extending into the interior of the second water pump.

5. A coating machine with stable coating thickness according to claim 4, characterized in that: The second water pump has an extraction pipe installed on the outer wall of the side away from the delivery pipe, and the extraction pipe extends into the interior of the second water pump and is connected to the limit frame.

6. A coating machine with stable coating thickness according to claim 5, characterized in that: Stepper motors are symmetrically installed inside the support cylinder below the lifting arm, and each stepper motor has an adjusting threaded rod installed at its output end.

7. A coating machine with stable coating thickness according to claim 6, characterized in that: The surface of each adjusting threaded rod is fitted with an adjusting threaded sleeve, and a drive plate is installed between the two sides of the adjusting threaded sleeve, and the drive plate is connected to the lifting arm.

8. A coating machine with stable coating thickness according to claim 7, characterized in that: A transmission frame is mounted on the top of the lead screw moving assembly, a drive frame is slidably mounted on the outer wall of the transmission frame, and a slide rail is mounted on the outer wall of the transmission frame on one side of the drive frame.

9. A coating machine with stable coating thickness according to claim 8, characterized in that: A slider is slidably mounted on the outer wall of the slide rail, and the slider is connected to the drive frame. A cylinder is mounted on the outer wall of the transmission frame below the slide rail, and the output end of the cylinder is connected to the drive frame. Multiple sets of drying fans with equal spacing are mounted on the outer wall of the drive frame.

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