Coating equipment for outer lens cone machining

The automatic transmission of paint is achieved through the design of the transmission rod and the isolation plate, which solves the problem that existing equipment needs to open the spray can separately, simplifies the spraying steps, improves work efficiency and coating quality, and adapts to different sizes of outer lens barrels to avoid shaking.

CN223276460UActive Publication Date: 2025-08-29DONGGUAN HUICHENG PRECISION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422231910.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-11
Publication Date
2025-08-29
Estimated Expiration
2034-09-11

AI Technical Summary

Technical Problem

The existing coating equipment requires the spray can be opened separately to enable multiple sets of spray heads to work, which increases the spraying steps and reduces work efficiency.

Method used

A coating equipment is designed, through the structure of the transmission rod, transmission mechanism and isolation plate, the automatic transmission of the paint to the spray head is realized, the spraying step is simplified, and the stable support of the outer lens barrel is ensured through the support block and the adaptation mechanism, and the outer lens barrel of different sizes is adapted to the outer lens barrel.

Benefits of technology

The spraying steps are simplified, the working efficiency is improved, the coating quality and the adaptability of the equipment are improved, and the outer lens barrel is avoided during the spraying process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223276460U_ABST
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Abstract

The utility model belongs to the technical field of outer lens cone machining, and discloses coating equipment for outer lens cone machining. Comprising a processing table, a dispersing box is arranged at the top end of the processing table, multiple groups of nozzles are mounted on one side of the dispersing box, a water pipe is mounted at the end, away from the nozzles, of the dispersing box, an external spraying tank is mounted at the end, away from the dispersing box, of the water pipe, and an L-shaped plate is fixedly connected to the bottom end of the processing table. Through the structural design of the transmission rod, the transmission mechanism, the closing mechanism and the isolation plate, the motor drives the rotary table to rotate, meanwhile, the transmission mechanism drives the transmission rod to rotate, the transmission rod drives the closing mechanism to operate, opening and closing of the isolation plate are ingeniously controlled, coating is automatically conveyed to the spray head, a spraying tank does not need to be independently opened, and the spraying efficiency is improved. In addition, the motor drives the outer lens barrel to rotate, it is ensured that the surface of the outer lens barrel is evenly covered with the coating, and the coating quality is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of outer lens barrel processing, and more specifically, to a coating device for outer lens barrel processing. Background Art

[0002] The outer lens barrel, also known as the lens barrel or lens housing, is an important component of the photographic lens. During the processing of the outer lens barrel, in order to protect the lens barrel from environmental factors such as moisture, corrosion, ultraviolet rays, etc. and extend the service life of the lens barrel, it needs to be painted.

[0003] Existing coating equipment is mostly composed of a motor, a turntable, a spray tank, a water pipe, a dispersion box and multiple sets of nozzles. The water pipe is connected to the dispersion box, and the multiple sets of nozzles are installed at the end of the dispersion box away from the water pipe. The spray tank is connected to the end of the water pipe away from the dispersion box. Its working principle is as follows: first, the outer lens barrel is placed on the top of the turntable, and the motor controls the rotation of the turntable. Then the spray tank is opened, and the paint inside it enters the dispersion box along the water pipe. Finally, the dispersion box transfers the paint into the multiple sets of nozzles and sprays it on the surface of the outer lens barrel at the top of the turntable. As the motor runs, the motor will drive the outer lens barrel to rotate through the turntable, so that its multiple sets of nozzles can spray the paint evenly at various positions on the surface of the outer lens barrel.

[0004] However, when using existing coating equipment, it is necessary to open the spray cans separately and multiple groups of spray heads can work, which requires an extra spraying step, which increases the working time required for spraying and reduces work efficiency. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a coating device for processing an outer lens barrel.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a coating device for processing an outer lens barrel, comprising a processing table, a dispersion box is provided at the top of the processing table, a plurality of nozzles are installed on one side of the dispersion box, a water pipe is installed at one end of the dispersion box away from the nozzle, and an external spray tank is installed at the other end of the water pipe away from the dispersion box, an L-plate is fixedly connected to the bottom end of the processing table, a motor is installed on the inner side of the L-plate, the output end of the motor passes through the processing table and is fixedly connected to a turntable, the outer lens barrel is provided on the top of the turntable, and further comprising:

[0007] A chute is provided on the outside of the water pipe, an isolation plate is slidably connected to the inside of the chute, and a closing mechanism is provided on the periphery of the isolation plate for moving the isolation plate;

[0008] The transmission rod is arranged on the periphery of the closing mechanism. The top and bottom ends of the transmission rod are rotatably connected to a connecting plate and a concave plate respectively. The connecting plate and the concave plate are respectively fixed to the top and bottom ends of the processing table. A transmission mechanism cooperating with the motor is provided on the outside of the transmission rod.

[0009] Furthermore, the closing mechanism includes a transmission plate, a pair of first guide plates, a support plate, three groups of first springs, a rack and a spur gear. The transmission plate is fixedly connected to the isolation plate, a pair of first guide plates are fixedly connected to the outside of the water pipe, and a pair of first guide plates pass through the transmission plate, a pair of first guide plates are fixedly connected to the support plate at one end away from the water pipe, the two ends of the three groups of first springs are respectively fixedly connected to the transmission plate and the support plate, the rack is fixedly connected to the outside of the transmission plate, the spur gear is engaged with the rack, and the spur gear is fixed to the outside of the transmission rod.

[0010] Furthermore, the transmission mechanism includes a first sprocket, a second sprocket and a chain, the first sprocket is fixed to the outside of the motor output end, the second sprocket is fixed to the outside of the transmission rod, and the chain is engaged with the outside of the first sprocket and the second sprocket.

[0011] Furthermore, three groups of support blocks are provided at the top of the turntable, and the three groups of support blocks are all in contact with the inner wall of the outer lens barrel. The bottom ends of the three groups of support blocks are all provided with adaptation mechanisms, and the adaptation mechanisms are used to adapt to outer lens barrels of different sizes.

[0012] Furthermore, the adaptation mechanism includes a mounting groove, a guide block, a pair of second guide rods and a second spring. The mounting groove is opened at the top of the processing table, the guide block is fixed to the bottom end of the support block, and the guide block is located inside the mounting groove. The pair of second guide rods are both fixed to the inner wall of the mounting groove, and the two ends of the second spring are respectively fixed to the mounting groove and the guide block.

[0013] Furthermore, friction pads are glued to the outer sides of the three groups of support blocks, and the friction pads are made of rubber.

[0014] The technical effects and advantages of the coating equipment for outer barrel processing of the utility model are as follows:

[0015] (1) Through the structural design of the transmission rod, transmission mechanism, closing mechanism and isolation plate, the motor drives the turntable to rotate. At the same time, the transmission mechanism drives the transmission rod to rotate, and the transmission rod drives the closing mechanism to operate, cleverly controlling the opening and closing of the isolation plate, and realizing the automatic transmission of paint to the spray head. There is no need to open the spray tank separately, which simplifies the spraying steps and significantly improves work efficiency. In addition, the motor drives the outer barrel to rotate, ensuring that the paint evenly covers its surface, thereby improving the coating quality.

[0016] (2) Through the structural design of the support block and the adaptation mechanism, when the outer lens barrel is placed, the adaptation mechanism can drive the support block to continuously squeeze the outer lens barrel, automatically and firmly support it, effectively preventing shaking during the spraying process and improving the coating quality. At the same time, this design also gives the device excellent adaptability, and can easily cope with outer lens barrels of different sizes without frequent adjustments, greatly improving production efficiency and the versatility of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 This is a schematic diagram of the motor and concave plate structure in the utility model.

[0019] Figure 3 This is a schematic diagram of the first sprocket, the second sprocket and the chain structure in the present invention.

[0020] Figure 4 This is a schematic diagram of a water pipe explosion in the present invention.

[0021] Figure 5 This is a schematic diagram of the explosion of the outer lens barrel in the present utility model.

[0022] Figure 6 For this utility model Figure 5 A is an enlarged structural diagram of FIG.

[0023] In the picture:

[0024] 1. Processing table; 2. Dispersion box; 3. Water pipe; 4. L-plate; 5. Motor; 6. Turntable; 7. Slide; 8. Isolation plate; 9. Transmission rod; 10. Connecting plate; 11. Concave plate; 12. Transmission plate; 13. First guide plate; 14. Support plate; 15. First spring; 16. Rack; 17. Spur gear; 18. First sprocket; 19. Second sprocket; 20. Chain; 21. Support block; 22. Mounting slot; 23. Guide block; 24. Second guide rod; 25. Second spring; 26. Friction pad. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1 - Figure 4As shown, a coating device for processing an outer lens barrel includes a processing table 1, a dispersion box 2 is provided at the top of the processing table 1, a plurality of nozzles are installed on one side of the dispersion box 2, a water pipe 3 is installed at the end of the dispersion box 2 away from the nozzle, and an external spray tank is installed at the end of the water pipe 3 away from the dispersion box 2. The bottom end of the processing table 1 is fixedly connected to an L-plate 4, and a motor 5 is installed on the inner side of the L-plate 4. The output end of the motor 5 passes through the processing table 1 and is fixedly connected to a turntable 6. The top of the turntable 6 is provided with an outer lens barrel, and further includes:

[0027] A chute 7 is provided on the outside of the water pipe 3. An isolation plate 8 is slidably connected to the inside of the chute 7. A closing mechanism is provided on the periphery of the isolation plate 8 for moving the isolation plate 8.

[0028] The transmission rod 9 is arranged on the periphery of the closing mechanism. The top and bottom ends of the transmission rod 9 are rotatably connected to a connecting plate 10 and a concave plate 11 respectively. The connecting plate 10 and the concave plate 11 are respectively fixed to the top and bottom ends of the processing table 1. A transmission mechanism that cooperates with the motor 5 is provided on the outside of the transmission rod 9.

[0029] When the existing coating equipment is in use, the spray cans need to be opened separately and multiple groups of nozzles can work, which requires an extra spraying step, which increases the working time required for spraying and reduces work efficiency. When the present embodiment is in use, the outer barrel is first placed on the top of the turntable 6, and the motor 5 controls the rotation of the turntable 6. When the motor 5 is running, it also drives the transmission rod 9 to rotate through the transmission mechanism. In the initial state, the isolation plate 8 blocks the inside of the water pipe 3, and the paint cannot pass through the water pipe 3. When the transmission rod 9 rotates, it drives the closing mechanism to operate, and the closing mechanism then drives the isolation plate 8 to disengage from the inside of the chute 7. At this time, the isolation plate 8 ends its blockage of the inside of the water pipe 3, and the paint inside it enters the inside of the dispersion box 2 along the water pipe 3. Finally, the dispersion box 2 transfers the paint into the multiple groups of nozzles. , and sprayed on the surface of the outer barrel at the top of the turntable 6. As the motor 5 runs, the motor will drive the outer barrel to rotate through the turntable 6, so that its multiple groups of nozzles can spray the paint evenly on various positions on the surface of the outer barrel. Moreover, through the above-mentioned structural design, it is realized that when the coating equipment is working, the paint is automatically transmitted to the nozzle, avoiding the need to open the spray can separately, simplifying the working steps, and improving the working efficiency. When the motor 5 stops running, it means that the coating equipment has finished spraying the outer barrel. At this time, the transmission mechanism stops running, and the transmission mechanism ends the power transmission to the closing mechanism through the transmission rod 9. The closing mechanism will drive the isolation plate 8 to reset, and seal the inside of the water pipe 3 again through the slide groove 7. At this time, the paint inside the spray can cannot pass through the water pipe 3, thereby ending the coating work.

[0030] like Figure 3 and Figure 4As shown, the closing mechanism includes a transmission plate 12, a pair of first guide plates 13, a support plate 14, three groups of first springs 15, a rack 16 and a spur gear 17. The transmission plate 12 is fixedly connected to the isolation plate 8, the pair of first guide plates 13 are fixedly connected to the outer side of the water pipe 3, and the pair of first guide plates 13 pass through the transmission plate 12, the end of the pair of first guide plates 13 away from the water pipe 3 is fixedly connected to the support plate 14, the two ends of the three groups of first springs 15 are respectively fixedly connected to the transmission plate 12 and the support plate 14, the rack 16 is fixedly connected to the outer side of the transmission plate 12, the spur gear 17 is engaged with the rack 16, and the spur gear 17 is fixedly connected to the outer side of the transmission rod 9.

[0031] In the initial state, the isolation plate 8 is inside the chute 7. When the transmission mechanism drives the transmission rod 9 to rotate, the transmission rod 9 synchronously drives the spur gear 17 to rotate, and the rotation of the spur gear 17 drives the rack 16 to move. When the rack 16 moves in the direction away from the water pipe 3, the rack 16 synchronously drives the transmission plate 12 to move. During the movement of the transmission plate 12, it will move along the outer side of the first guide plate 13 and squeeze the first spring 15, causing the transmission plate 12 to deform and generate elastic potential energy. At this time, the transmission plate 12 will drive the isolation plate 8 to separate from the inside of the water pipe 3. It should be noted that as the spur gear 17 continues to rotate, the spur gear 17 drives the rack 16 to move to the top When the gear 17 and the rack 16 are out of mesh, the spur gear 17 and the rack 16 will be out of mesh. However, under the action of the transmission plate 12 and the first spring 15, the rack 16 will be continuously reset to ensure that the rack 16 and the spur gear 17 are continuously fitted together. After the transmission mechanism finishes rotating the transmission rod 9, the three groups of first springs 15 will release elastic potential energy, push the isolation plate 8 into the interior of the chute 7 through the transmission plate 12, and close the interior of the water pipe 3 again. It should be noted that the motor 5 does not have a "brake system". Therefore, when the isolation plate 8 is reset, the elastic potential energy released by the three groups of first springs 15 is sufficient to overcome the friction between the resetting of the closing mechanism and the friction generated by the rotation of the motor 5.

[0032] like Figure 2 and Figure 3 As shown, the transmission mechanism includes a first sprocket 18, a second sprocket 19 and a chain 20. The first sprocket 18 is fixed to the outer side of the output end of the motor 5, the second sprocket 19 is fixed to the outer side of the transmission rod 9, and the chain 20 is engaged with the outer sides of the first sprocket 18 and the second sprocket 19.

[0033] When the motor 5 is running, it will drive the first sprocket 18 to rotate, and the rotation of the first sprocket 18 will drive the second sprocket 19 to rotate through the chain 20. Finally, the second sprocket 19 will drive the transmission rod 9 to rotate when it rotates.

[0034] like Figure 5 and Figure 6As shown, three groups of support blocks 21 are provided at the top of the turntable 6, and the three groups of support blocks 21 are all in contact with the inner wall of the outer lens barrel. The bottom ends of the three groups of support blocks 21 are all provided with adaptation mechanisms, and the adaptation mechanisms are used to adapt to outer lens barrels of different sizes.

[0035] When the outer lens barrel is directly placed on the top of the turntable 6, the outer lens barrel is prone to shaking when it is hit by the paint sprayed from multiple groups of nozzles. When this embodiment is in use, the bottom end of the outer lens barrel is first squeezed against the inclined surface of the three groups of support blocks 21. When the three groups of support blocks 21 are subjected to force, they will move in the direction of approaching. At this time, the adaptation mechanism will apply a force in the opposite direction to the three groups of support blocks 21, causing the three groups of support blocks 21 to move in the direction of separation. At this time, when the three groups of support blocks 21 are completely inside the outer lens barrel and fit with the top of the processing table 1, the adaptation mechanism will pull the three groups of support blocks 21 to squeeze the inside of the outer lens barrel, so that it can achieve the fixed function, avoiding the situation where the outer lens barrel shakes due to the impact of the paint. At the same time, the setting of the adaptation mechanism and the support blocks 21 also makes it possible to adapt to outer lens barrels of different sizes, thereby improving the adaptability of the device.

[0036] like Figure 5 and Figure 6 As shown, the adaptation mechanism includes a mounting groove 22, a guide block 23, a pair of second guide rods 24 and a second spring 25. The mounting groove 22 is opened at the top of the processing table 1, and the guide block 23 is fixed to the bottom end of the support block 21, and the guide block 23 is located inside the mounting groove 22. The pair of second guide rods 24 are both fixed to the inner wall of the mounting groove 22, and the two ends of the second spring 25 are respectively fixed to the mounting groove 22 and the guide block 23.

[0037] When the outer lens barrel squeezes the inclined surface of the support block 21, the support block 21 is subjected to force and drives the guide block 23 to move along the outer side of a pair of second guide rods 24. During the movement, the guide block 23 pulls the second spring 25 to deform and generate elastic potential energy. When the outer lens barrel passes over the inclined surface of the friction pad 26, the outer lens barrel will fit with the top of the processing table 1, and the second spring 25 will pull the support block 21 through the guide block 23 to squeeze the inner wall of the outer lens barrel and fix it. When the outer lens barrel needs to be removed, it is only necessary to move the outer lens barrel upward. As the outer lens barrel moves, the outer lens barrel will be separated from the fit with the friction pad 26. When the force on the second spring 25 ends, the elastic energy will be released, and the support block 21 will be pulled back to its original position through the guide block 23, which is convenient for fixing the lower group of outer lens barrels.

[0038] like Figure 6 As shown, friction pads 26 are glued to the outer sides of the three groups of support blocks 21, and the friction pads 26 are made of rubber.

[0039] The provision of the friction pad 26 can increase the friction between the support block 21 and the outer barrel, thereby improving the stability during fixation.

[0040] Working principle: When using existing coating equipment, it is necessary to open the spray cans separately and multiple groups of nozzles can work, which requires an extra spraying step, which increases the working time required for spraying and reduces work efficiency. When using this embodiment, first place the outer barrel on the top of the turntable 6, and the motor 5 controls the rotation of the turntable 6. When the motor 5 is running, it will also drive the transmission rod 9 to rotate through the transmission mechanism. In the initial state, the isolation plate 8 blocks the inside of the water pipe 3, and the paint cannot pass through the water pipe 3. When the transmission rod 9 rotates, it will drive the closing mechanism to operate, and the closing mechanism will drive the isolation plate 8 to disengage from the inside of the chute 7. At this time, the isolation plate 8 ends its blockage of the inside of the water pipe 3, and the paint inside it enters the inside of the dispersion box 2 along the water pipe 3. Finally, the dispersion box 2 passes the paint into the multiple groups The paint is evenly applied to each position of the outer barrel surface by the multiple groups of spray heads through the turntable 6. Moreover, the paint is automatically transferred to the spray heads when the coating equipment is working, thus avoiding the need to open the spray can separately, simplifying the working steps and improving the working efficiency. When the motor 5 stops running, it indicates that the coating equipment has finished spraying the outer barrel. At this time, the transmission mechanism stops running, and the transmission mechanism ends the power transmission to the closing mechanism through the transmission rod 9. The closing mechanism drives the isolation plate 8 to reset, and seals the inside of the water pipe 3 again through the slide groove 7. At this time, the paint inside the spray can cannot pass through the water pipe 3, thereby ending the coating work.

[0041] In the initial state, the isolation plate 8 is inside the chute 7. When the transmission mechanism drives the transmission rod 9 to rotate, the transmission rod 9 synchronously drives the spur gear 17 to rotate, and the rotation of the spur gear 17 drives the rack 16 to move. When the rack 16 moves in the direction away from the water pipe 3, the rack 16 synchronously drives the transmission plate 12 to move. During the movement of the transmission plate 12, it will move along the outer side of the first guide plate 13 and squeeze the first spring 15, causing the transmission plate 12 to deform and generate elastic potential energy. At this time, the transmission plate 12 will drive the isolation plate 8 to separate from the inside of the water pipe 3. It should be noted that as the spur gear 17 continues to rotate, the spur gear 17 drives the rack 16 to move to the top When the spur gear 17 and the rack 16 are out of mesh, however, the rack 16 will be continuously reset under the action of the transmission plate 12 and the first spring 15, ensuring that the rack 16 and the spur gear 17 are continuously in contact with each other. After the transmission mechanism finishes rotating the transmission rod 9, the three groups of first springs 15 will release their elastic potential energy, pushing the isolation plate 8 into the interior of the chute 7 through the transmission plate 12, and sealing the interior of the water pipe 3 again. It should be noted that the motor 5 does not have a "brake system", so when the isolation plate 8 is reset, the elastic potential energy released by the three groups of first springs 15 is sufficient to overcome the friction between the reset of the closing mechanism and the friction generated by the rotation of the motor 5.

[0042] When the motor 5 is running, it will drive the first sprocket 18 to rotate, and the rotation of the first sprocket 18 will drive the second sprocket 19 to rotate through the chain 20. Finally, when the second sprocket 19 rotates, it will drive the transmission rod 9 to rotate;

[0043] When the outer lens barrel is directly placed on the top of the turntable 6, the outer lens barrel is prone to shaking when it is hit by the paint sprayed from multiple groups of nozzles. When the present embodiment is in use, the bottom end of the outer lens barrel is first squeezed against the inclined surface of the three groups of support blocks 21. When the three groups of support blocks 21 are subjected to force, they will move in the direction of approaching. At this time, the adapting mechanism will apply a force in the opposite direction to the three groups of support blocks 21, so that the three groups of support blocks 21 move in the direction of separation. At this time, when the three groups of support blocks 21 are completely inside the outer lens barrel and fit with the top of the processing table 1, the adapting mechanism will pull the three groups of support blocks 21 to squeeze the inside of the outer lens barrel, so that it can achieve the fixed function, avoiding the situation that the outer lens barrel shakes due to the impact of the paint. At the same time, the arrangement of the adapting mechanism and the support blocks 21 also makes it possible to adapt to outer lens barrels of different sizes, thereby improving the adaptability of the device.

[0044] When the outer lens barrel squeezes the inclined surface of the support block 21, the support block 21 is subjected to force and drives the guide block 23 to move along the outer side of the pair of second guide rods 24. During the movement, the guide block 23 pulls the second spring 25 to deform and generate elastic potential energy. When the outer lens barrel passes over the inclined surface of the friction pad 26, the outer lens barrel will fit with the top of the processing table 1, and the second spring 25 will pull the support block 21 through the guide block 23 to squeeze the inner wall of the outer lens barrel and fix it. When the outer lens barrel needs to be taken out, it is only necessary to move the outer lens barrel upward. As the outer lens barrel moves, the outer lens barrel will be separated from the fit with the friction pad 26. When the force on the second spring 25 ends, the elasticity will be released, and the support block 21 will be pulled back to its original position through the guide block 23, which is convenient for fixing the lower group of outer lens barrels.

[0045] The provision of the friction pad 26 can increase the friction between the support block 21 and the outer barrel, thereby improving the stability during fixation.

[0046] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A coating device for processing an outer lens barrel, comprising a processing table (1), a dispersion box (2) is provided at the top of the processing table (1), a plurality of nozzles are installed on one side of the dispersion box (2), a water pipe (3) is installed at one end of the dispersion box (2) away from the nozzle, an external spray tank is installed at one end of the water pipe (3) away from the dispersion box (2), an L-plate (4) is fixedly connected to the bottom end of the processing table (1), a motor (5) is installed on the inner side of the L-plate (4), an output end of the motor (5) passes through the processing table (1) and is fixedly connected to a turntable (6), an outer lens barrel is provided at the top of the turntable (6), and the outer lens barrel is provided, characterized in that Also includes: A chute (7), the chute (7) is provided on the outside of the water pipe (3), an isolation plate (8) is slidably connected to the inside of the chute (7), and a closing mechanism is provided on the periphery of the isolation plate (8), and the closing mechanism is used to move the isolation plate (8); A transmission rod (9) is arranged on the periphery of the closing mechanism. The top and bottom ends of the transmission rod (9) are rotatably connected to a connecting plate (10) and a concave plate (11), respectively. The connecting plate (10) and the concave plate (11) are fixed to the top and bottom ends of the processing table (1), respectively. A transmission mechanism that cooperates with the motor (5) is arranged on the outside of the transmission rod (9).

2. The coating equipment for outer barrel processing according to claim 1, characterized in that: The closing mechanism comprises a transmission plate (12), a pair of first guide plates (13), a support plate (14), three groups of first springs (15), a rack (16) and a spur gear (17); the transmission plate (12) is fixedly connected to the isolation plate (8); the pair of first guide plates (13) are fixedly connected to the outer side of the water pipe (3), and the pair of first guide plates (13) pass through the transmission plate (12); one end of the pair of first guide plates (13) away from the water pipe (3) is fixedly connected to the support plate (14); the two ends of the three groups of first springs (15) are respectively fixedly connected to the transmission plate (12) and the support plate (14); the rack (16) is fixedly connected to the outer side of the transmission plate (12); the spur gear (17) is meshed with the rack (16); and the spur gear (17) is fixedly connected to the outer side of the transmission rod (9).

3. The coating equipment for outer barrel processing according to claim 2, characterized in that: The transmission mechanism comprises a first sprocket (18), a second sprocket (19) and a chain (20), wherein the first sprocket (18) is fixedly connected to the outer side of the output end of the motor (5), the second sprocket (19) is fixedly connected to the outer side of the transmission rod (9), and the chain (20) is meshed with the outer sides of the first sprocket (18) and the second sprocket (19).

4. The coating equipment for outer barrel processing according to claim 3, characterized in that: Three groups of support blocks (21) are provided at the top of the turntable (6), and the three groups of support blocks (21) are all fitted with the inner wall of the outer lens barrel. The bottom ends of the three groups of support blocks (21) are all provided with an adaptation mechanism, and the adaptation mechanism is used to adapt to outer lens barrels of different sizes.

5. The coating equipment for outer barrel processing according to claim 4, characterized in that: The adaption mechanism comprises a mounting groove (22), a guide block (23), a pair of second guide rods (24) and a second spring (25); the mounting groove (22) is provided at the top end of the processing table (1); the guide block (23) is fixed to the bottom end of the support block (21), and the guide block (23) is located inside the mounting groove (22); the pair of second guide rods (24) are both fixed to the inner wall of the mounting groove (22); and the two ends of the second spring (25) are respectively fixed to the mounting groove (22) and the guide block (23).

6. The coating equipment for outer barrel processing according to claim 5, characterized in that: The outer sides of the three groups of support blocks (21) are all glued with friction pads (26), and the friction pads (26) are made of rubber.