A coating device for uniform spraying

Abstract

The present invention discloses a coating device for uniform spraying, which relates to the field of semiconductor coating technology. It includes a workbench, on the top of which a coating machine is arranged. At the bottom of the coating machine, a plurality of nozzles are provided. On the top of the workbench, a control component is arranged. At the open end of the spiral plate, a carrying component is arranged. Through the setting of the spiral plate and the plurality of nozzles, the surface of the spiral plate is provided with a movement window penetrating through itself, where the movement window includes an initial section, a smooth section and a plurality of trigger sections. Through the design of multiple different windows, the fixation and loosening of the semiconductor plate are realized, with the ability of automatic processing, reducing the need for manual operation, realizing continuous spraying and coating of the semiconductor plate, making the working process efficient and fast. By using the special design of the nozzles and the spiral plate, the semiconductor plate can be sprayed and coated layer by layer from the outer ring to the inner layer, ensuring uniform coating without omission. The precise positioning and processing of each semiconductor plate ensure the accuracy and consistency of each spraying and coating.

Description

Technical Field

[0001] The present invention relates to the technical field of semiconductor coating, and specifically provides a coating device for uniform spraying. Background Art

[0002] Semiconductors are materials with conductive properties between conductors and insulators. Semiconductors are widely used. They are applied in fields such as integrated circuits, consumer electronics, communication systems, photovoltaic power generation, lighting, and high-power power conversion. Coating equipment is commonly used in semiconductor production. The end faces of semiconductors need to be coated for protection to prevent damage to the semiconductors.

[0003] The following problems exist in the prior art:

[0004] Under the prior art, most semiconductor coating devices have a single working mode. During coating, the semiconductor material needs to be fixed on the fixture of the device. After coating, the semiconductor is removed and the coating of the next semiconductor is carried out, resulting in low efficiency. During coating, the coating spray head needs to continuously traverse and spray inside the machine tool. Operators need to strictly follow operating procedures during the coating or spraying process, such as controlling the spraying speed, spraying thickness, spraying time, etc. If it is not accurate enough, it may lead to uneven coating results. Therefore, we propose a coating device for uniform spraying to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a coating device for uniform spraying to solve the problems raised in the above background art.

[0006] To achieve the above invention purpose, the present invention adopts the following technical solutions:

[0007] A coating device for uniform spraying provided by the present invention includes a workbench. A coating machine is arranged on the top of the workbench. A plurality of nozzles are arranged at the bottom of the coating machine. A control component is arranged on the top of the workbench. The control component includes a spiral plate. The bottom of the spiral plate is fixedly connected to the workbench and their axes coincide. A bearing component is arranged at the open end of the spiral plate. The bearing component is slidably connected to the workbench. The spiral plate is arranged at the bottom of the plurality of nozzles. The number of plate layers of the spiral plate matches the number of nozzles. A movement window penetrating through itself is opened on the surface of the spiral plate. The movement window includes an initial section, a smooth section, and a plurality of trigger sections. The plurality of trigger sections are respectively arranged at the bottoms of the plurality of nozzles. The initial section is opened at the end of the spiral plate close to its own opening. The initial section is communicated with the smooth section. The height of the initial section decreases uniformly from the direction close to the smooth section of itself. The height of the smooth section is greater than that of the trigger section. Inclined surfaces are opened at the joints of the initial section, the smooth section, and the trigger section. Limiting seats are fixedly connected to both ends of the spiral plate. A connecting plate is fixedly connected to the top of the spiral plate. A plurality of tooth grooves are opened on the side of the connecting plate away from the axis of the workbench. A limiting plate is fixedly connected to the surface of the spiral plate close to the axis of the workbench.

[0008] Preferably, the bearing component includes an installation cylinder. A support cylinder is fixedly connected to the top of the installation cylinder. The support cylinder has a funnel structure. The top wall of the support cylinder is fixedly connected with a receiving plate. A rubber ring is fixedly connected to the top of the receiving plate. A plurality of grooves are opened on the inner ring wall of the rubber ring.

[0009] Preferably, the plurality of grooves are uniformly distributed around the axis of the rubber ring. A movement seat is arranged inside the installation cylinder. The movement seat is slidably connected to the inner wall of the installation cylinder. An installation ring groove is opened around the movement seat. A plurality of sealing rings are sleeved in the installation ring groove.

[0010] Preferably, the outer ring wall of the sealing ring is slidably connected to the inner wall of the installation cylinder. A top seat is fixedly connected to one side of the bottom of the movement seat. A pressure sensor is arranged at the bottom of the top seat. A first fixing plate is fixedly connected to the bottom of the pressure sensor.

[0011] Preferably, one end of the first fixing plate is fixedly connected to the inner wall of the installation cylinder. The output end of the pressure sensor is electrically connected to a signal transmitter. The output end of the signal transmitter is electrically connected to the built-in single-chip microcomputer of the coating machine.

[0012] Preferably, a fixed roller is fixedly connected to the bottom of the movement seat. A movement rod is fixedly connected to the bottom of the fixed roller. One end of the movement rod away from the installation cylinder extends into the spiral plate through the movement window. The movement rod is slidably connected to the movement window.

[0013] Preferably, one end of the moving rod inside the spiral plate is fixedly connected with a fitting seat, the fitting seat is slidably connected with the side of the spiral plate close to the axis of the workbench, a limiting groove matching the limiting plate is formed on the side of the fitting seat close to the spiral plate, and the limiting plate is slidably connected with the groove wall of the limiting groove.

[0014] Preferably, a servo motor is arranged on one side of the mounting cylinder close to the spiral plate, a fixing ring is sleeved on the surface of the servo motor, and one side of the fixing ring is fixedly connected with the outer wall of the mounting cylinder.

[0015] Preferably, the servo motor is fixedly connected with the fixing ring, a driving roller is fixedly connected to the output end of the servo motor, a driving gear is fixedly connected to the bottom of the driving roller, and the driving gear is meshed with the connecting plate through a tooth groove.

[0016] Preferably, a connecting cylinder is fixedly connected to the bottom of the mounting cylinder, two second fixing plates are fixedly connected to the bottom of the connecting cylinder, the two second fixing plates are symmetrically distributed along the axis of the mounting cylinder, communication windows are formed on both sides of the connecting cylinder, a guide wheel is rotatably connected to the end faces of the two second fixing plates close to each other, and the bottom of the guide wheel is in contact with the table top of the workbench.

[0017] Compared with the prior art, the above one or more technical solutions have the following beneficial effects:

[0018] Through the arrangement of the spiral plate and multiple nozzles, the surface of the spiral plate is provided with a moving window penetrating through itself, and the moving window includes an initial section, a smooth section and multiple triggering sections. Through multiple different window designs, the fixing and loosening of the semiconductor plate are realized, with the ability of automatic processing, reducing the need for manual operation, realizing continuous spraying and coating of the semiconductor plate, making the working process efficient and fast. By using the special designs of the nozzles and the spiral plate, the semiconductor plate can be sprayed and coated layer by layer from the outer ring to the inner layer, ensuring uniform coating without omission. The device can realize precise positioning and processing of each semiconductor plate through control such as limiting and sensors, ensuring the accuracy and consistency of each spraying and coating, and having the advantages of high efficiency, uniformity, automation, etc., which can improve the production efficiency and quality of the semiconductor plate and is applicable to scenarios requiring large-scale production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The attached drawings forming a part of this invention are used to provide a further understanding of the invention. The schematic embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation to the invention.

[0020] Figure 1 is the overall structural schematic diagram of the invention.

[0021] Figure 2 is the assembly structural schematic diagram of the nozzle and the control component of the invention.

[0022] Figure 3 It is a schematic diagram of the assembly structure of the connecting plate and the bearing assembly of the present invention.

[0023] Figure 4 It is a schematic diagram of the control component structure of the present invention.

[0024] Figure 5 The present invention Figure 1 Enlarged structural diagram at A in the middle.

[0025] Figure 6 It is a schematic diagram of the assembly structure of the driving gear and the connecting plate of the present invention.

[0026] Figure 7 It is a schematic diagram of the assembly structure of the bearing assembly and the initial section of the present invention.

[0027] Figure 8 It is a schematic diagram of the assembly structure of the fitting seat and the spiral plate of the present invention.

[0028] Figure 9 It is a schematic diagram of the structure of the bearing assembly of the present invention.

[0029] Figure 10 It is a schematic diagram of the support tube structure of the present invention.

[0030] Figure 11 It is a schematic diagram of the assembly structure of the mounting cylinder and the moving seat of the present invention.

[0031] Figure 12 The present invention Figure 11 Enlarged structural diagram at B in the middle.

[0032] In the figure:

[0033] 1. Workbench; 101. Coating machine; 102. Nozzle; 2. Control assembly; 201. Spiral plate; 202. Connecting plate; 203. Tooth groove; 204. Stop seat; 205. Motion window; 206. Initial section; 207. Smooth section; 208. Trigger section; 209. Inclined surface; 210. Stop plate; 3. Carrying assembly; 301. Mounting cylinder; 302. Support cylinder; 303. Receiver plate; 304. Rubber ring; 305. Groove; 306. Moving seat; 307, mounting ring groove; 308, sealing ring; 309, upper top seat; 310, first fixed plate; 311, pressure sensor; 312, signal transmitter; 313, fixed roller; 314, moving rod; 315, fitting seat; 316, limiting groove; 317, servo motor; 318, fixed ring; 319, driving roller; 320, driving gear; 321, connecting tube; 322, connecting window; 323, second fixed plate; 324, guide wheel. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the solution of this application, the following will clearly and completely describe the technical solution in the embodiments of this application in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of this application.

[0035] Please refer to Figures 1 - 12 , the present invention provides a coating device for uniform spraying, including a workbench 1, a coating machine 101 is arranged on the top of the workbench 1, a plurality of nozzles 102 are arranged at the bottom of the coating machine 101, a control component 2 is arranged on the top of the workbench 1, and a bearing component 3 is arranged at the open end of the spiral plate 201. The cooperation of multiple components improves the uniformity and consistency of coating.

[0036] In order to automatically control the up and down movement of materials, a spiral plate 201 is provided in the control component 2. The bottom of the spiral plate 201 is fixedly connected to the workbench 1 and their axes coincide. The bearing component 3 is slidably connected to the workbench 1. The spiral plate 201 is arranged at the bottom of multiple nozzles 102. The number of plate layers of the spiral plate 201 matches the number of nozzles 102. A movement window 205 penetrating through itself is formed on the surface of the spiral plate 201. The movement window 205 includes an initial section 206, a smooth section 207, and multiple trigger sections 208. The multiple trigger sections 208 are respectively arranged at the bottoms of the multiple nozzles 102. The initial section 206 is formed at one end of the spiral plate 201 close to its opening. The initial section 206 communicates with the smooth section 207. The height of the initial section 206 decreases uniformly from the direction close to the smooth section 207. The height of the smooth section 207 is greater than that of the trigger section 208. Inclined surfaces 209 are formed at the joints of the initial section 206, the smooth section 207, and the trigger section 208. Limit seats 204 are fixedly connected to both ends of the spiral plate 201. The bearing component 3 includes an installation cylinder 301. A support cylinder 302 is fixedly connected to the top of the installation cylinder 301. The support cylinder 302 has a funnel structure. A receiving plate 303 is fixedly connected to the top wall of the support cylinder 302. A rubber ring 304 is fixedly connected to the top of the receiving plate 303. Multiple grooves 305 are formed on the inner ring wall of the rubber ring 304. The multiple grooves 305 are evenly distributed around the axis of the rubber ring 304. A movement seat 306 is arranged inside the installation cylinder 301. The movement seat 306 is slidably connected to the inner wall of the installation cylinder 301. Installation ring grooves 307 are formed around the movement seat 306. Multiple sealing rings 308 are sleeved in the installation ring grooves 307. The outer ring wall of the sealing ring 308 is slidably connected to the inner wall of the installation cylinder 301. The servo motor 317 drives the whole installation cylinder 301 including the semiconductor plate to move forward along the edge of the spiral plate 201. The movement rod 314 at the bottom of the installation cylinder 301 starts to move downward under the limitation of the initial section 206, so that the movement seat 306 at the top of the movement rod 314 moves inside the installation cylinder 301. Because the movement seat 306 has extremely high airtightness inside the installation cylinder 301, when the movement seat 306 moves, the space where the support cylinder 302 contacts the semiconductor plate shows a certain degree of vacuum, the air pressure decreases, and together with the bearing ring at the bottom, the semiconductor plate is fixed on the support cylinder 302. When the bearing component 3 returns, the material can be removed.

[0037] To improve the uniformity of spraying, a top seat 309 is fixedly connected to one side of the bottom of the moving seat 306. A pressure sensor 311 is arranged at the bottom of the top seat 309. The bottom of the pressure sensor 311 is fixedly connected to a first fixing plate 310. One end of the first fixing plate 310 is fixedly connected to the inner wall of the installation cylinder 301. The output end of the pressure sensor 311 is electrically connected to a signal transmitter 312. The output end of the signal transmitter 312 is electrically connected to the single-chip microcomputer built in the coating machine 101. The semiconductor plate at the top of the installation cylinder 301 continues to move around the spiral plate 201. When moving to multiple trigger segments 208 in the middle of the movement window 205, since the height of the smooth segment 207 is greater than that of the trigger segment 208, it forces the movement rod 314 to continue to move downward in the movement window 205. The movement rod 314 drives the moving seat 306 to move downward in the installation cylinder 301. The top seat 309 at the bottom of the moving seat 306 moves synchronously. The top seat 309 moves downward to contact the pressure sensor 311 at the bottom. The pressure sensor 311 is connected to the control unit of the coating machine 101 through the signal transmitter 312. A plurality of electromagnetic valves are arranged in each of the plurality of nozzles 102 at the bottom of the coating machine 101. When a signal that the semiconductor plate has moved to its bottom is received at the bottom of a certain nozzle 102, the electromagnetic valve opens at this moment, and the nozzle 102 starts to spray and coat the semiconductor plate at the bottom, so that the semiconductor plate can undergo a complete circumferential coating process during spraying without omission, and is more uniform. Precise positioning and processing of each semiconductor plate can be achieved, ensuring the accuracy and consistency of each spraying and coating.

[0038] In order to drive the entire device to move around the spiral plate 201, a connecting plate 202 is fixedly connected to the top of the spiral plate 201. A plurality of tooth grooves 203 are formed on the side of the connecting plate 202 away from the axis of the workbench 1. A limiting plate 210 is fixedly connected to the surface of the spiral plate 201 close to the axis of the workbench 1. A servo motor 317 is arranged on the side of the installation cylinder 301 close to the spiral plate 201. A fixing ring 318 is sleeved on the surface of the servo motor 317. One side of the fixing ring 318 is fixedly connected to the outer wall of the installation cylinder 301. The servo motor 317 is fixedly connected to the fixing ring 318. The output end of the servo motor 317 is fixedly connected to a driving roller 319. A driving gear 320 is fixedly connected to the bottom of the driving roller 319. The driving gear 320 is meshed with the connecting plate 202 through the tooth groove 203. When the servo motor 317 is started, the servo motor 317 drives the entire installation cylinder 301 including the semiconductor plate to move forward along the edge of the spiral plate 201, so that the carrying assembly 3 moves forward along the edge of the spiral plate 201. The driving gear 320 is meshed with the tooth groove of the connecting plate 202 through the tooth groove 203 to ensure synchronous movement of the two. The driving roller 319 transmits power to the connecting plate 202 through the rotation of the driving gear 320, so that the entire installation cylinder 301 including the semiconductor plate moves forward along the edge of the spiral plate 201. The device also includes auxiliary components such as the connecting plate 202 and the limiting plate 210, which are used to ensure the stable operation of the device and the control of the working range. Through the drive of the servo motor 317 and the driving gear 320, precise control and movement of the entire device are realized, improving work efficiency and movement accuracy. The auxiliary components such as the connecting plate 202 and the limiting plate 210 in the device can ensure the stability of the device and the reliability of movement, avoiding accidental failures and movement deviations. According to needs, the rotation speed of the servo motor 317 and the structures of the driving gear 320 and the tooth groove 203 can be adjusted to adapt to different working conditions and requirements. Through the automatic drive of the servo motor 317, automatic operation of the device is realized, reducing manual intervention and improving production efficiency.

[0039] To improve the stability of the overall device, a connecting cylinder 321 is fixedly connected to the bottom of the installation cylinder 301. Two second fixing plates 323 are fixedly connected to the bottom of the connecting cylinder 321. The two second fixing plates 323 are symmetrically distributed along the axis of the installation cylinder 301. Communication windows 322 are provided on both sides of the connecting cylinder 321. Guide wheels 324 are rotatably connected to the end faces of the two second fixing plates 323 close to each other. The bottom of the guide wheel 324 contacts the tabletop of the workbench 1. A fixed roller 313 is fixedly connected to the bottom of the moving seat 306. A moving rod 314 is fixedly connected to the bottom of the fixed roller 313. One end of the moving rod 314 away from the installation cylinder 301 penetrates through the moving window 205 and extends into the spiral plate 201. The moving rod 314 is slidably connected to the moving window 205. One end of the moving rod 314 in the spiral plate 201 is fixedly connected to a fitting seat 315. The fitting seat 315 is slidably connected to the side of the spiral plate 201 close to the axis of the workbench 1. A limiting groove 316 matching the limiting plate 210 is provided on the side of the fitting seat 315 close to the spiral plate 201. The limiting plate 210 is slidably connected to the groove wall of the limiting groove 316. During the movement of the loading component 3, the fitting seat 315 can cooperate with the limiting groove 316 to prevent the loading component 3 from flipping. The guide wheel 324 at its bottom can reduce the moving friction of the loading component 3 and provide support, enabling the overall device to operate smoothly.

[0040] Working principle

[0041] The device is provided with a spiral plate 201. The spiral plate 201 is arranged at the bottom of multiple spray heads 102. A moving window 205 penetrating through itself is provided on the surface of the spiral plate 201. The moving window 205 includes an initial section 206, a smooth section 207, and multiple trigger sections 208. The moving window 205 of the initial section 206 is inclined. A semiconductor plate is placed on the top of the support cylinder 302 in the loading component 3.

[0042] The servo motor 317 drives the overall installation cylinder 301 including the semiconductor plate to move forward along the edge of the spiral plate 201. The moving rod 314 at the bottom of the installation cylinder 301 starts to move downward under the limitation of the initial section 206, causing the moving seat 306 at the top of the moving rod 314 to move within the installation cylinder 301. Due to the extremely high airtightness of the moving seat 306 within the installation cylinder 301, during the movement of the moving seat 306, the space where the support cylinder 302 contacts the semiconductor plate is in a certain vacuum state, the air pressure decreases, and with the cooperation of the bottom bearing ring, the semiconductor plate is fixed on the support cylinder 302.

[0043] During the movement process, two symmetrically distributed second fixing plates 323 increase the overall rigidity and stability of the device, making the device less likely to generate excessive vibration and deformation during operation. The guide wheels 324 are located in the communication windows 322 on both sides of the connecting cylinder 321 and contact the tabletop of the workbench 1, playing a role in bearing and supporting. A fixed roller 313 is fixed at the bottom of the moving seat 306 and is connected to the fitting seat 315 through a moving rod 314 to transmit the moving force to the spiral plate 201. The guide wheels 324 reduce the moving friction of the bearing assembly 3 and provide additional support, contributing to the smooth operation of the overall device. The fitting seat 315 is slidably connected to the side of the spiral plate 201 close to the axis of the workbench 1 and is provided with a limiting groove 316 matching the limiting plate 210. Through the limitation of the limiting groove 316, the position of the fitting seat 315 during the movement of the bearing assembly 3 can be controlled, so that the bearing assembly 3 can be fixed and will not flip. This structure helps to avoid abnormal tilting or swinging of the device during operation.

[0044] The semiconductor plate at the top of the installation cylinder 301 continues to move around the spiral plate 201. When it moves to the multiple trigger segments 208 in the middle of the movement window 205, due to the height of the smooth segment 207 being greater than that of the trigger segment 208, it forces the moving rod 314 to continue to move downward in the movement window 205. The moving rod 314 drives the moving seat 306 to move downward in the installation cylinder 301. The upper top seat 309 at the bottom of the moving seat 306 moves synchronously. The upper top seat 309 moves downward and contacts the pressure sensor 311 at the bottom. The pressure sensor 311 is connected to the control unit of the coating machine 101 through a signal transmitter 312. Multiple electromagnetic valves are arranged in each of the multiple nozzles 102 at the bottom of the coating machine 101. When a signal that the semiconductor plate has moved to its bottom is received at the bottom of a certain nozzle 102, the electromagnetic valve opens at this moment, and the nozzle 102 starts to spray and coat the semiconductor plate at the bottom.

[0045] After a complete process, its servo motor 317 will control the bearing assembly 3 to rotate, so that the semiconductor plate can be spray-coated again. When it reaches the initial segment 206 of the movement window 205, the moving rod 314 moves upward under the limitation of the initial segment 206, and the semiconductor plate can be separated from the fixing part, and the next semiconductor plate can be placed.

[0046] The spraying surface is fan-shaped, and each spray head 102 is arranged on the periphery of each layer of spiral plate 201 to spray the outer ring of the semiconductor plate. By utilizing the special shape of the spiral plate 201, the semiconductor plate is sprayed layer by layer from the outer ring to the inner layer, enabling a complete circumferential coating process during spraying without omission and with greater uniformity. Precise positioning and processing of each semiconductor plate can be achieved, ensuring the accuracy and consistency of each spraying and coating operation. At the same time, there is a process of fixing and releasing the semiconductor plate, which can be automated. Only personnel are required to pick up the semiconductor plate, and the working process is highly efficient, capable of improving the production efficiency and quality of the semiconductor plate.

[0047] The above description is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, should be covered within the protection scope of the present invention.

Claims

1. A coating device for uniform spraying, characterized in that, It includes a workbench (1), on the top of the workbench (1) there is a coating machine (101), at the bottom of the coating machine (101) there are multiple nozzles (102), on the top of the workbench (1) there is a control component (2), the control component (2) includes a spiral plate (201), the bottom of the spiral plate (201) is fixedly connected to the workbench (1) and their axes coincide, at the open end of the spiral plate (201) there is a bearing component (3), the bearing component (3) is slidably connected to the workbench (1), the spiral plate (201) is arranged at the bottom of the multiple nozzles (102), on the top of each plate layer of the spiral plate (201) except the open end there is a nozzle (102), on the surface of the spiral plate (201) there is a movement window (205) running through itself, the movement window (205) includes an initial section (206), a smooth section (207) and multiple trigger sections (208), the multiple trigger sections (208) are respectively arranged at the bottoms of the multiple nozzles (102), the initial section (206) is opened at the spiral plate (201) near its own open end, the initial section (206) is communicated with the smooth section (207), the height of the initial section (206) decreases uniformly from its own direction towards the smooth section (207), the height of the smooth section (207) is greater than that of the trigger section (208), at the joints of the initial section (206), the smooth section (207) and the trigger section (208) there are inclined surfaces (209) opened, both ends of the spiral plate (201) are fixedly connected with limit seats (204), on the top of the spiral plate (201) there is a connecting plate (202), on one side of the connecting plate (202) away from the axis of the workbench (1) there are multiple tooth grooves (203), on the surface of the spiral plate (201) close to the axis of the workbench (1) there is a limit plate (210).

2. The coating device for uniform spraying according to claim 1, characterized in that, The bearing component (3) includes an installation cylinder (301), at the top of the installation cylinder (301) there is a support cylinder (302) fixedly connected, the support cylinder (302) has a funnel-shaped structure, on the top cylinder wall of the support cylinder (302) there is a receiving plate (303) fixedly connected, on the top of the receiving plate (303) there is a rubber ring (304) fixedly connected, and there are multiple grooves (305) opened on the inner ring wall of the rubber ring (304).

3. The coating device for uniform spraying according to claim 2, characterized in that, The multiple grooves (305) are evenly distributed around the axis of the rubber ring (304), inside the installation cylinder (301) there is a movement seat (306), the movement seat (306) is slidably connected to the inner wall of the installation cylinder (301), there is an installation ring groove (307) opened around the movement seat (306), and multiple sealing rings (308) are sleeved in the groove of the installation ring groove (307).

4. The coating device for uniform spraying according to claim 3, wherein, The outer ring wall of the sealing ring (308) is slidably connected to the inner wall of the installation cylinder (301), at one side of the bottom of the movement seat (306) there is an upper top seat (309) fixedly connected, at the bottom of the upper top seat (309) there is a pressure sensor (311), and at the bottom of the pressure sensor (311) there is a first fixing plate (310) fixedly connected.

5. The coating device for uniform spraying according to claim 4, characterized in that, One end of the first fixing plate (310) is fixedly connected to the inner wall of the mounting cylinder (301). The output end of the pressure sensor (311) is electrically connected to a signal transmitter (312), and the output end of the signal transmitter (312) is electrically connected to the built-in single-chip microcomputer of the coating machine (101).

6. The coating device for uniform spraying according to claim 5, characterized in that, A fixed roller (313) is fixedly connected to the bottom of the moving seat (306). A moving rod (314) is fixedly connected to the bottom of the fixed roller (313). One end of the moving rod (314) far from the mounting cylinder (301) penetrates through the moving window (205) and extends into the spiral plate (201). The moving rod (314) is slidably connected to the moving window (205).

7. The coating device for uniform spraying according to claim 6, characterized in that, One end of the moving rod (314) in the spiral plate (201) is fixedly connected to a fitting seat (315). The fitting seat (315) is slidably connected to the surface of the spiral plate (201) close to the axis of the workbench (1). A limiting groove (316) matching the limiting plate (210) is formed on the surface of the fitting seat (315) close to the spiral plate (201). The limiting plate (210) is slidably connected to the groove wall of the limiting groove (316).

8. A coating device for uniform spraying according to claim 7, characterized in that, A servo motor (317) is arranged on one side of the mounting cylinder (301) close to the spiral plate (201). A fixing ring (318) is sleeved on the surface of the servo motor (317). One side of the fixing ring (318) is fixedly connected to the outer wall of the mounting cylinder (301).

9. The coating device for uniform spraying according to claim 8, wherein, The servo motor (317) is fixedly connected to the fixing ring (318). The output end of the servo motor (317) is fixedly connected to a driving roller (319). A driving gear (320) is fixedly connected to the bottom of the driving roller (319). The driving gear (320) is meshed with the connecting plate (202) through a tooth groove (203).

10. A coating device for uniform spraying according to claim 9, characterized in that, A connecting cylinder (321) is fixedly connected to the bottom of the mounting cylinder (301). Two second fixing plates (323) are fixedly connected to the bottom of the connecting cylinder (321). The two second fixing plates (323) are symmetrically distributed along the axis of the mounting cylinder (301). Communication windows (322) are formed on both sides of the connecting cylinder (321). Guide wheels (324) are rotatably connected to the end faces of the two second fixing plates (323) close to each other. The bottoms of the guide wheels (324) are in contact with the tabletop of the workbench (1).

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