Device for uniformly spraying mirror frame and spraying process

Abstract

The invention relates to the technical field of spraying devices, and provides a device for uniformly spraying a mirror frame and a spraying process, the uniform spraying operation of a target mirror frame is realized by adopting a plurality of staggered spraying points, the spraying quality is ensured, the spraying efficiency is higher, the effective utilization rate of paint is better, and the device is more practical. Comprising a target mirror frame, a spraying system and a supporting system, the supporting system comprises a main stand column, the bottom end of the main stand column is fixedly connected with a bottom support, the main stand column is provided with an alternating inner supporting and clamping assembly used for supporting and positioning the target mirror frame, and the main stand column is rotationally connected with an adjusting and rotating assembly; the sandwich frame is installed on the adjusting rotating assembly, a plurality of top spraying holes are formed in the inner top face of the sandwich frame, a plurality of bottom spraying holes are formed in the inner bottom face of the sandwich frame, a plurality of side spraying holes are formed in the inner side face of the sandwich frame, the bottom end of the sandwich frame is communicated with a liquid supply pipe, and the top spraying holes, the bottom spraying holes and the side spraying holes are all communicated with the liquid supply pipe.

Description

Technical Field

[0001] The present invention relates to the technical field of spraying devices, and particularly relates to a device and a spraying process for uniformly spraying spectacle frames. Background Art

[0002] As is well known, a spectacle frame is something that is inlaid around a mirror to play a role in restraint, support or protection. Generally, it is a frame made of materials such as wood or gypsum inlaid around glass. Usually, the surface of the spectacle frame is coated with paint to improve the surface effect of the spectacle frame. A device for uniformly spraying a spectacle frame is an auxiliary device for auxiliary spraying of the paint on the surface of the spectacle frame.

[0003] After retrieval, the patent with the Chinese patent publication number CN222197478U discloses a spraying device for a skylight frame, which is generally described as including a spraying frame, a concave-shaped bracket and a bottom plate. The front side and the rear side of the spraying frame are respectively provided with shielding curtains. Both sides of the spraying frame are provided with concave-shaped brackets. A pipeline is arranged between the concave-shaped brackets. One end of the pipeline is respectively provided with a spraying pump and a paint bin. The positions corresponding to the connecting pipes in the spraying frame are fixed with nozzles through bolts. A bottom plate is arranged in the spraying frame. Second cross bars are arranged on the top of the bottom plate. Rotating disks are installed at both ends of the bottom of the second cross bars through rotating shafts. The patent with the Chinese patent publication number CN116237180A discloses a spraying tool for glass edging, which is generally described as including a frame. A spraying device is arranged outside the frame. An opening is arranged at one end close to the bottom on the side of the frame corresponding to the spraying device. A clamp for fixing the glass edging is installed in the frame. The clamp has a clamping end adapted to the glass edging. The clamping end is used to clamp the glass edging so that the edge of the glass edging is exposed at the opening. The spraying device sprays the edge of the glass edging exposed at the opening.

[0004] Although the above two sets of prior art solutions can both assist in realizing the spraying operation of the corresponding target parts, the nozzle structures thereof are not elaborated in detail. And most of the nozzles on the current market are conical structures, and the atomized paint during the operation of the nozzle will be circularly distributed with the atomization point as the discharge port. Therefore, when a single nozzle acts on the frame, the spraying coverage is thicker in the area close to the nozzle and the area directly opposite to the nozzle, while the paint coverage in the area far from the nozzle and the area obliquely opposite to the nozzle is thinner, and the spraying uniformity is poor, and the spraying quality needs to be further improved. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a device and a spraying process for uniformly spraying a spectacle frame. It uses multiple spraying points arranged in a staggered manner to realize the uniform spraying operation of the target spectacle frame, further improving the spraying efficiency while ensuring the spraying quality, and the effective utilization rate of the paint is also good, which is more practical.

[0006] To achieve the above object, the present invention provides the following technical solution: A device for evenly spraying a spectacle frame, including a target spectacle frame, further including a spraying system and a supporting system. The supporting system includes a main column, the bottom end of the main column is fixedly connected with a bottom bracket, and an alternating inner support clamping component for supporting and positioning the target spectacle frame is installed on the main column. An adjusting rotation component is rotatably connected to the main column. The spraying system includes a sandwich frame, the sandwich frame is installed on the adjusting rotation component, a plurality of top spray holes are opened on the inner top surface of the sandwich frame, a plurality of bottom spray holes are opened on the inner bottom surface of the sandwich frame, a plurality of side spray holes are opened on the inner side surface of the sandwich frame, a liquid supply pipe is communicated with the bottom end of the sandwich frame, and the plurality of top spray holes, the plurality of bottom spray holes and the plurality of side spray holes are all communicated with the liquid supply pipe. A distance sensor is installed inside the sandwich frame, and a re-suction pump is installed outside the sandwich frame. The pump-in end of the re-suction pump is communicated with a re-suction vertical pipe, and the re-suction vertical pipe is installed on the sandwich frame through a pressure-adjusting mounting piece. Gathering vertical pipes are installed at both ends of the sandwich frame, and the two gathering vertical pipes are both communicated with the discharge end of the re-suction pump.

[0007] Preferably, the pressure-adjusting mounting piece includes a fixed frame and a lifting ring. The fixed frame is fixedly connected with the sandwich frame, the lifting ring is slidably connected with the fixed frame, and a reset spring and an elastic airbag are fixedly connected between the fixed frame and the lifting ring. The bottom end of the lifting ring is fixedly connected with an extension frame, the re-suction vertical pipe is fixedly connected with the extension frame, the bottom end of the elastic airbag is communicated with an external connecting pipe, and the external connecting pipe is communicated with the inside of the sandwich frame.

[0008] Preferably, rotating frames are rotatably connected to the outside of the two gathering vertical pipes, and rotation dampers are respectively arranged between the two gathering vertical pipes and the two rotating frames. The two rotating frames are both fixedly connected with the sandwich frame.

[0009] Preferably, the adjusting rotation component includes a rotating table, a first servo motor and a second servo motor. The rotating table is rotatably connected to the main column, the first servo motor and the second servo motor are respectively installed on the main column and the rotating table. The first servo motor is used for driving the rotation of the rotating table relative to the main column. An installation through-hole is opened on the rotating table, and a bent arm is slidably connected to the installation through-hole. The sandwich frame is fixedly connected to the top end of the bent arm. The second servo motor is used for sliding adjustment of the bent arm relative to the installation through-hole.

[0010] Preferably, a communication ring is fixedly connected to the rotating table, a communication hole is opened in the main column, the bottom end of the communication hole is communicated with a quick connection pipe, the top end of the communication hole is communicated with the communication ring, and the communication ring is communicated with the liquid supply pipe.

[0011] Preferably, the alternating inner support clamping assembly includes a fixed disk frame, a rotating disk frame, a first lifting frame and a second lifting frame. The fixed disk frame is fixedly connected to the main column, and the rotating disk frame is rotatably connected to the main column. A third servo motor is installed on the fixed disk frame, and the third servo motor is used for the rotational adjustment of the rotating disk frame relative to the fixed disk frame. Two first moving frames are slidably connected to the fixed disk frame, and both of the two first moving frames are connected to the first lifting frame. Two second moving frames are slidably connected to the rotating disk frame, and both of the two second moving frames are connected to the second lifting frame. The first lifting frame and the second lifting frame are both connected to the main column. A first electric telescopic rod and a second electric telescopic rod are respectively installed on the fixed disk frame and the rotating disk frame. The telescopic rods of the first electric telescopic rod and the second electric telescopic rod are respectively connected to the first lifting frame and the second lifting frame.

[0012] Preferably, first surrounding openings are respectively formed on the fixed disk frame and the first lifting frame, and both of the two first surrounding openings are matched with the second electric telescopic rod. Second surrounding openings are respectively formed on the rotating disk frame and the second lifting frame, and both of the two second surrounding openings are matched with the first electric telescopic rod.

[0013] Preferably, two transmission frames are respectively hinged to the first lifting frame and the second lifting frame. Hinge ears are fixedly connected to both of the two first moving frames and both of the two second moving frames. The four hinge ears are respectively rotatably connected to the four transmission frames. Insertion support rods are fixedly connected to both of the two first moving frames and both of the two second moving frames. The four insertion support rods are all matched with the target spectacle frame.

[0014] Preferably, drive gears are respectively installed on the output shafts of the first servo motor, the second servo motor and the third servo motor. A transmission gear ring, a transmission rack and a transmission half gear ring are respectively installed outside the rotating table, on the bent arm and on the rotating disk frame. The transmission gear ring, the transmission rack and the transmission half gear ring are respectively meshed with the three drive gears.

[0015] A process for uniform spraying of spectacle frames includes the following steps: S1. During use, first, control the sandwich frame to move away from the main column by adjusting the rotating assembly. Then, form support and positioning for the target spectacle frame to be sprayed by the alternating inner support clamping assembly. Next, start the distance sensor and control the sandwich frame to move closer to the main column by adjusting the rotating assembly. S2. When the target spectacle frame is inserted relative to the sandwich holder and the distance sensor detects that the suitable spraying distance is reached between it and the target spectacle frame, stop the further insertion movement of the target spectacle frame relative to the sandwich holder. Then, by adjusting the rotating assembly, form the surrounding movement of the sandwich holder relative to the target spectacle frame. During the surrounding movement, the distance sensor continuously detects the relative distance between the sandwich holder and the target spectacle frame to form the relative position adjustment between the target spectacle frame and the sandwich holder. S3. After the target spectacle frame is inserted in place relative to the sandwich holder, first start the re-suction pump to make the re-suction vertical pipe form adsorption, and blow out the air adsorbed by the re-suction vertical pipe through the gathering vertical pipe. Then, supply the pressure-bearing paint solution into the supply pipe and ensure the stability of the pressure in the supply pipe. S4. The paint solution entering the supply pipe will be sprayed out through the top spray holes, bottom spray holes and side spray holes to form atomization. The atomized paint will then form a coating operation relative to the target spectacle frame. During the coating operation, the sandwich holder forms a surrounding movement relative to the target spectacle frame to achieve full coverage spraying of the target spectacle frame. S5. When there is no paint liquid pressure in the supply pipe, the pressure-adjusting assembly will keep the re-suction vertical pipe in a raised state relative to the sandwich holder to facilitate the insertion and removal of the target spectacle frame relative to the sandwich holder. During the spraying operation, there is the pressure of the paint liquid in the supply pipe, making the pressure-adjusting assembly also in a pressurized state. Therefore, the re-suction vertical pipe will form a relative drop relative to the sandwich holder so that the adsorption area of the re-suction vertical pipe corresponds to the spraying area of the sandwich holder.

[0016] Compared with the prior art, the present invention provides a device and spraying process for uniform spraying of spectacle frames, having the following beneficial effects: (1) In the present invention, through the design of the support system, the supporting spraying system and the alternating inner support clamping assembly form a corresponding installation main body to facilitate the coordinated operation between the spraying system and the alternating inner support clamping assembly.

[0017] (2) In the present invention, through the design of the spraying system, a corresponding spraying functional component is formed in cooperation with the target spectacle frame. It uses multiple spraying points arranged in a staggered manner to achieve uniform spraying operation of the target spectacle frame, further improving the spraying efficiency while ensuring the spraying quality, and also having better effective utilization rate of the paint.

[0018] (3) In the present invention, through the design of the alternating inner support clamping assembly, positioning clamping before painting is formed corresponding to the target spectacle frame. It can adapt to target spectacle frames of various specifications and sizes, and can avoid the spraying operation of the spraying system. On the one hand, it can ensure the smooth passage of the spraying system, and on the other hand, it can achieve spraying coverage of the target spectacle frame, with better practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the whole of the present invention; Figure 2 For the present invention Figure 1 is a schematic diagram of a partially enlarged structure at location A in the present invention; Figure 3 is a schematic three-dimensional structure diagram of the cooperation of the fixed disc frame, rotating disc frame and the first pair of moving frames, etc. in the present invention; Figure 4 For the present invention Figure 3 is a schematic diagram of a partially enlarged structure at location B in the present invention; Figure 5 is a schematic three-dimensional structure diagram of the cooperation of the lifting ring, reset tension spring and elastic airbag in the present invention; Figure 6 is a schematic three-dimensional structure diagram of a partial cross-section of the cooperation of the main column, fixed disc frame and rotating disc frame, etc. in the present invention; Figure 7 is a schematic three-dimensional structure diagram of the overall bottom view of the present invention; Figure 8 For the present invention Figure 7 is a schematic diagram of a partially enlarged structure at location C in the present invention; Figure 9 is a schematic three-dimensional structure diagram of the bottom view of the cooperation of the fixed disc frame, rotating disc frame and the first pair of moving frames, etc. in the present invention; Figure 10 For the present invention Figure 9 is a schematic diagram of a partially enlarged structure at location D in the present invention; Figure 11 is a schematic three-dimensional structure diagram of the bottom view of the cooperation of the lifting ring, reset tension spring and elastic airbag, etc. in the present invention; Figure 12 is a schematic three-dimensional structure diagram of the cooperation of the sandwich frame, suction return vertical pipe and lifting ring, etc. in the present invention.

[0020] In the figure: 1. Target spectacle frame; 2. Main column; 3. Bottom bracket; 4. Sandwich frame; 5. Top spray hole; 6. Bottom spray hole; 7. Side spray hole; 8. Liquid supply pipe; 9. Distance sensor; 10. Re-suction pump; 11. Suction return vertical pipe; 12. Converging vertical pipe; 13. Fixed frame; 14. Lifting ring; 15. Reset tension spring; 16. Elastic airbag; 17. Outer connecting pipe; 18. Rotating frame; 19. Rotating table; 20. First servo motor; 21. Second servo motor; 22. Bent arm; 23. Connecting ring; 24. Connecting hole; 25. Quick connecting pipe; 26. Fixed disc frame; 27. Rotating disc frame; 28. First lifting frame; 29. Second lifting frame; 30. Third servo motor; 31. First pair of moving frames; 32. Second pair of moving frames; 33. First electric telescopic rod; 34. Second electric telescopic rod; 35. First surrounding port; 36. Second surrounding port; 37. Transmission frame; 38. Hinge ear; 39. Insertion support rod; 40. Driving gear; 41. Transmission tooth ring; 42. Transmission rack; 43. Transmission half tooth ring. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] For the embodiments, please refer to Figures 1 - 12 , a device for uniformly spraying a spectacle frame, including a target spectacle frame 1, and further including a spraying system and a supporting system. The supporting system includes a main column 2. The bottom end of the main column 2 is fixedly connected with a bottom bracket 3. An alternating inner support clamping assembly for supporting and positioning the target spectacle frame 1 is installed on the main column 2. The alternating inner support clamping assembly includes a fixed disk frame 26, a rotating disk frame 27, a first lifting frame 28, and a second lifting frame 29. The fixed disk frame 26 is fixedly connected with the main column 2. The rotating disk frame 27 is rotatably connected with the main column 2. A third servo motor 30 is installed on the fixed disk frame 26. The third servo motor 30 is used for the rotational adjustment of the rotating disk frame 27 relative to the fixed disk frame 26. Two first moving frames 31 are slidably connected to the fixed disk frame 26. Both of the two first moving frames 31 are connected to the first lifting frame 28. Two second moving frames 32 are slidably connected to the rotating disk frame 27. Both of the two second moving frames 32 are connected to the second lifting frame 29. The first lifting frame 28 and the second lifting frame 29 are both connected to the main column 2. A first electric telescopic rod 33 and a second electric telescopic rod 34 are respectively installed on the fixed disk frame 26 and the rotating disk frame 27. The telescopic rods of the first electric telescopic rod 33 and the second electric telescopic rod 34 are respectively connected to the first lifting frame 28 and the second lifting frame 29. Through the design of the alternating inner support clamping assembly, the positioning and clamping before painting are formed corresponding to the target spectacle frame 1. It can adapt to target spectacle frames 1 of various specifications and sizes, and can form an avoidance in coordination with the spraying operation of the spraying system. On the one hand, it can ensure the smooth passage of the spraying system, and on the other hand, it can achieve the spraying coverage of the target spectacle frame 1, with better practicability. An adjusting rotation assembly is rotatably connected to the main column 2. Through the design of the supporting system, a corresponding installation body is formed in cooperation with the spraying system and the alternating inner support clamping assembly to facilitate the coordinated operation between the spraying system and the alternating inner support clamping assembly.

[0023] It should be further noted that the spraying system includes a sandwich rack 4, which is installed on the adjustment and rotation assembly. The adjustment and rotation assembly includes a rotating table 19, a first servo motor 20, and a second servo motor 21. The rotating table 19 is rotatably connected to the main column 2. The first servo motor 20 and the second servo motor 21 are respectively installed on the main column 2 and the rotating table 19. The first servo motor 20 is used to drive the rotation of the rotating table 19 relative to the main column 2. An installation through-hole is provided on the rotating table 19, and a bent arm 22 is slidably connected to the installation through-hole. The sandwich rack 4 is fixedly connected to the top end of the bent arm 22. The second servo motor 21 is used to adjust the sliding of the bent arm 22 relative to the installation through-hole. A plurality of top spray holes 5 are provided on the inner top surface of the sandwich rack 4, a plurality of bottom spray holes 6 are provided on the inner bottom surface of the sandwich rack 4, a plurality of side spray holes 7 are provided on the inner side surface of the sandwich rack 4, and a liquid supply pipe 8 is connected to the bottom end of the sandwich rack 4. The plurality of top spray holes 5, the plurality of bottom spray holes 6, and the plurality of side spray holes 7 are all connected to the liquid supply pipe 8. A distance sensor 9 is installed inside the sandwich rack 4, and a reabsorption pump 10 is installed outside the sandwich rack 4. The pump-in end of the reabsorption pump 10 is connected to a back suction vertical pipe 11, and the back suction vertical pipe 11 is installed on the sandwich rack 4 through a pressure-adjusting and mounting component. Gathering vertical pipes 12 are installed at both ends of the sandwich rack 4, and both of the two gathering vertical pipes 12 are connected to the discharge end of the reabsorption pump 10. Through the design of the spraying system, a corresponding spraying functional component is formed in cooperation with the target spectacle frame 1. It uses a plurality of spraying points arranged in a staggered manner to achieve uniform spraying operation of the target spectacle frame 1, further improving the spraying efficiency while ensuring the spraying quality, and also having a good effective utilization rate of the paint. The pressure-adjusting and mounting component includes a fixed frame 13 and a lifting ring 14. The fixed frame 13 is fixedly connected to the sandwich rack 4, the lifting ring 14 is slidably connected to the fixed frame 13, and a reset spring 15 and an elastic airbag 16 are fixedly connected between the fixed frame 13 and the lifting ring 14. The bottom end of the lifting ring 14 is fixedly connected to an outstretched frame, and the back suction vertical pipe 11 is fixedly connected to the outstretched frame. The bottom end of the elastic airbag 16 is connected to an external connection pipe 17, and the external connection pipe 17 is connected to the inside of the sandwich rack 4. Rotating frames 18 are rotatably connected outside both of the two gathering vertical pipes 12, and a rotational damping is provided between each of the two gathering vertical pipes 12 and the corresponding rotating frame 18. Both of the two rotating frames 18 are fixedly connected to the sandwich rack 4, enabling both of the two gathering vertical pipes 12 to form attitude adjustment relative to the sandwich rack 4, so as to adjust the gas ejection direction of the gathering vertical pipes 12.

[0024] It should be further noted that a connecting ring 23 is fixedly connected to the rotating table 19. A connecting hole 24 is formed in the main column 2. The bottom end of the connecting hole 24 is communicated with a quick connecting pipe 25. The top end of the connecting hole 24 is communicated with the connecting ring 23, and the connecting ring 23 is communicated with the liquid supply pipe 8. In actual use, by connecting the quick connecting pipe 25 to the pipeline for feeding the paint liquid from the outside world, the paint liquid can be finally fed into the liquid supply pipe 8 through the sequential guidance of the quick connecting pipe 25, the connecting hole 24 and the connecting ring 23. First surrounding openings 35 are formed in both the fixed disk frame 26 and the first lifting frame 28, and both of the two first surrounding openings 35 are matched with the second electric telescopic rod 34. Second surrounding openings 36 are formed in both the rotating disk frame 27 and the second lifting frame 29, and both of the two second surrounding openings 36 are matched with the first electric telescopic rod 33, providing necessary assembly and adjustment spaces for the first electric telescopic rod 33 and the second electric telescopic rod 34. Two transmission frames 37 are hinged to both the first lifting frame 28 and the second lifting frame 29. Hinge ears 38 are fixedly connected to both the two first moving frames 31 and the two second moving frames 32, and the four hinge ears 38 are respectively rotatably connected to the four transmission frames 37. Insertion support rods 39 are fixedly connected to both the two first moving frames 31 and the two second moving frames 32, and the four insertion support rods 39 are all matched with the target spectacle frame 1. Driving gears 40 are installed on the output shafts of the first servo motor 20, the second servo motor 21 and the third servo motor 30. A transmission gear ring 41, a transmission rack 42 and a transmission half gear ring 43 are respectively installed outside the rotating table 19, on the bent arm 22 and on the rotating disk frame 27. The transmission gear ring 41, the transmission rack 42 and the transmission half gear ring 43 are respectively meshed with the three driving gears 40, providing specific transmission structures between the first servo motor 20 and the rotating table 19, between the second servo motor 21 and the bent arm 22, and between the third servo motor 30 and the rotating disk frame 27.

[0025] The distance sensor 9, the first servo motor 20, the second servo motor 21, the third servo motor 30, the first electric telescopic rod 33 and the second electric telescopic rod 34 in this embodiment are all conventional devices well-known to those skilled in the art and purchased on the market. In the present invention, we only use them without improving their structures and functions. Their setting methods, installation methods and electrical connection methods can be debugged and operated by those skilled in the art as long as they follow the requirements of their user manuals, and thus will not be elaborated here. Moreover, the first servo motor 20, the second servo motor 21, the third servo motor 30, the first electric telescopic rod 33 and the second electric telescopic rod 34 are equipped with a central control machine which has a display function. Through the display function of the central control machine, the measurement data of the distance sensor 9 can be read, and corresponding drive controls of the first servo motor 20, the second servo motor 21, the first electric telescopic rod 33 and the second electric telescopic rod 34 can be realized based on the real-time data of the distance sensor 9.

[0026] In summary, the working principle of the device and spraying process for uniform spraying of spectacle frames is as follows: during use, first, the sandwich holder 4 is controlled to move away from the main column 2 by adjusting the rotating assembly. The second servo motor 21 in the rotating assembly is energized and operates. Under the meshing drive of the corresponding drive gear 40 and transmission rack 42, the bending arm 22 can be adjusted to move relative to the rotating table 19, achieving the relative adjustment of the sandwich holder 4 relative to the main column 2. Then, the target spectacle frame 1 to be sprayed is supported and positioned by the alternating inner support clamping assembly. When the alternating inner support clamping assembly is used, first, the third servo motor 30 is controlled to operate. Under the meshing drive of the drive gear 40 and the transmission semi-tooth ring 43, the rotating disc holder 27 is adjusted to rotate relative to the fixed disc holder 26, so that an inner support structure matching the target spectacle frame 1 is formed between the two first moving frames 31 and the two second moving frames 32. Then, the operator assists in holding the target spectacle frame 1 to make the target spectacle frame 1 have an appropriate relative height relative to the four insertion support rods 39. By first controlling the first electric telescopic rod 33 to operate, the first lifting frame 28 is adjusted in height relative to the main column 2. Under the drive of the two transmission frames 37 connected to the first lifting frame 28, the relative positions of the two first moving frames 31 are adjusted, so that the two insertion support rods 39 connected to the two first moving frames 31 can form internal support and positioning corresponding to the two diagonals of the target spectacle frame 1. Then, by operating the second electric telescopic rod 34, the relative positions of the two second moving frames 32 are adjusted, so that the two insertion support rods 39 connected to the two second moving frames 32 can form internal support and positioning corresponding to the two diagonals of the target spectacle frame 1. Then, the distance sensor 9 is started and the sandwich holder 4 is controlled to move closer to the main column 2 by adjusting the rotating assembly. When the target spectacle frame 1 is inserted into the sandwich holder 4 and the distance sensor 9 detects that it has entered an appropriate spraying distance from the target spectacle frame 1, the further insertion movement of the target spectacle frame 1 relative to the sandwich holder 4 is stopped. Since the spraying distance is related to the pressure of the supplied paint liquid, the greater the pressure of the supplied paint liquid, the greater the spraying distance. Generally, the spraying distance is preferably selected from 15 cm to 20 cm. Then, the sandwich holder 4 is adjusted to perform a circumferential movement relative to the target spectacle frame 1 by adjusting the rotating assembly, that is, the first servo motor 20 in the rotating assembly is energized and operates. Under the meshing drive of the corresponding drive gear 40 and transmission gear ring 41, the rotation drive and control of the rotating table 19 relative to the main column 2 are formed. The movement of the rotating table 19 drives the bending arm 22 to rotate. The rotation of the bending arm 22 drives the sandwich holder 4 to rotate. During the circumferential movement of the sandwich holder 4, the distance sensor 9 continuously detects the relative distance between the sandwich holder 4 and the target spectacle frame 1. The central control unit reads the detection data of the distance sensor 9 in real time and forms the operation control of the second servo motor 21 according to the detection data, realizing the real-time sliding adjustment of the bending arm 22 relative to the rotating table 19 to cooperate with maintaining the relative distance between the sandwich holder 4 and the target spectacle frame 1.Adjust the relative position between the target spectacle frame 1 and the sandwich holder 4.

[0027] Further, after the target spectacle frame 1 is inserted into the sandwich holder 4 in place, first start the re-suction pump 10 to make the re-suction vertical pipe 11 form an adsorption effect, and blow out the air adsorbed by the re-suction vertical pipe 11 through the converging vertical pipe 12. Then, supply the paint solution with pressure into the supply pipe 8, and ensure the stability of the pressure in the supply pipe 8. The paint solution entering the supply pipe 8 will be sprayed out through the top spray holes 5, bottom spray holes 6 and side spray holes 7 to form atomization. The atomized paint will form a coating operation relative to the target spectacle frame 1. During the coating operation, the sandwich holder 4 moves around the target spectacle frame 1 to achieve full coverage spraying of the target spectacle frame 1. When there is no paint liquid pressure in the supply pipe 8, the reset tension spring 15 in the pressure-adjusting assembly will pull the lifting ring 14 to rise relative to the fixed frame 13, so that the re-suction vertical pipe 11 remains in a raised state relative to the sandwich holder 4 to facilitate the insertion and removal of the target spectacle frame 1 relative to the sandwich holder 4. During the spraying operation, there is pressure of the paint liquid in the supply pipe 8, so that the elastic airbag 16 in the pressure-adjusting assembly is also in a pressurized state. The elastic airbag 16 overcomes the elastic force of the elastic tension spring to form elongation, so that the re-suction vertical pipe 11 will fall relative to the sandwich holder 4, so that the adsorption area of the re-suction vertical pipe 11 corresponds to the spraying area of the sandwich holder 4 in height. In this state, the re-suction vertical pipe 11 can form a negative pressure adsorption on the area corresponding to the sandwich holder 4. On the one hand, it promotes the direction guidance of the atomized paint in the sandwich holder 4. On the other hand, it recovers the paint that cannot form a coating with the target detection frame in the suspended state, and finally forms the reuse of the recovered paint through the two converging vertical pipes 12. At the same time, the application of the converging vertical pipes 12 can also promote the central convergence of the paint in the sandwich holder 4, reduce the leakage of the atomized paint at both ends of the sandwich holder 4, and improve the utilization rate of the paint. Along with the rotational adjustment of the sandwich holder 4 relative to the target spectacle frame 1, when the sandwich holder 4 moves through the diagonal area of the target spectacle frame 1, control the insertion support rod 39 corresponding to the diagonal position to move away from the target spectacle frame 1 to ensure that there is a passing space matching the sandwich holder 4 and the re-suction vertical pipe 11 at the diagonal position of the target spectacle frame 1. When the sandwich holder 4 and the re-suction vertical pipe 11 pass through, the insertion support rod 39 separated from the target spectacle frame 1 forms a tightening and positioning relative to the target spectacle frame 1 again, as shown in the appendix Figure 1The state shown is when the sandwich rack 4 and the suction return vertical pipe 11 move through a diagonal position on the left side of the target spectacle frame 1 corresponding to the first pair of moving racks 31. At this time, the first electric telescopic rod 33 is powered on and operates to control the relative movement of the two first pair of moving racks 31 closer to each other, so that the corresponding insertion support rods 39 are moved away from the target spectacle frame 1 to ensure the smooth passage of the sandwich rack 4 and the suction return vertical pipe 11. After the sandwich rack 4 and the suction return vertical pipe 11 pass through the diagonal area of the target spectacle frame 1, the first electric telescopic rod 33 operates to control the two first pair of moving racks 31 to move away from each other, so that the insertion support rods 39 that are away from the target spectacle frame 1 come into contact with and internally support and position the target spectacle frame 1 again.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An apparatus for uniform spraying of spectacle frames, comprising a target spectacle frame, characterized in that, It further includes a spraying system and a support system. The support system includes a main column, the bottom end of the main column is fixedly connected with a bottom bracket, and an alternating inner support clamping assembly for supporting and positioning the target spectacle frame is installed on the main column. An adjusting rotation assembly is rotatably connected to the main column. The spraying system includes a sandwich frame, the sandwich frame is installed on the adjusting rotation assembly. A plurality of top spray holes are formed on the inner top surface of the sandwich frame, a plurality of bottom spray holes are formed on the inner bottom surface of the sandwich frame, a plurality of side spray holes are formed on the inner side surface of the sandwich frame, a liquid supply pipe is communicated with the bottom end of the sandwich frame, and the plurality of top spray holes, the plurality of bottom spray holes and the plurality of side spray holes are all communicated with the liquid supply pipe. A distance sensor is installed inside the sandwich frame, and a re-suction pump is installed outside the sandwich frame. The pump-in end of the re-suction pump is communicated with a re-suction vertical pipe, and the re-suction vertical pipe is installed on the sandwich frame through a pressure-adjusting and mounting member. Gathering vertical pipes are installed at both ends of the sandwich frame, and both of the two gathering vertical pipes are communicated with the discharge end of the re-suction pump.

2. The apparatus for uniform spraying of spectacle frames according to claim 1, characterized in that, The pressure-adjusting and mounting member includes a fixed frame and a lifting ring. The fixed frame is fixedly connected with the sandwich frame, the lifting ring is slidably connected with the fixed frame, and a reset tension spring and an elastic airbag are fixedly connected between the fixed frame and the lifting ring. The bottom end of the lifting ring is fixedly connected with an extension frame, the re-suction vertical pipe is fixedly connected with the extension frame, the bottom end of the elastic airbag is communicated with an external connecting pipe, and the external connecting pipe is communicated with the inside of the sandwich frame.

3. The apparatus for uniform spraying of spectacle frames according to claim 2, characterized in that, Rotating frames are rotatably connected to the outside of both of the two gathering vertical pipes, and rotation dampers are respectively arranged between the two gathering vertical pipes and the two rotating frames, and both of the two rotating frames are fixedly connected with the sandwich frame.

4. The apparatus for uniform spraying of spectacle frames according to claim 3, characterized in that, The adjusting rotation assembly includes a rotating table, a first servo motor and a second servo motor. The rotating table is rotatably connected to the main column, the first servo motor and the second servo motor are respectively installed on the main column and the rotating table. The first servo motor is used for driving the rotation of the rotating table relative to the main column. An installation through hole is formed on the rotating table, a bent arm is slidably connected to the installation through hole, the sandwich frame is fixedly connected to the top end of the bent arm, and the second servo motor is used for sliding adjustment of the bent arm relative to the installation through hole.

5. The apparatus for uniform spraying of spectacle frames according to claim 4, characterized in that, A communicating ring is fixedly connected to the rotating table, a communicating hole is formed in the main column, the bottom end of the communicating hole is communicated with a quick connecting pipe, the top end of the communicating hole is communicated with the communicating ring, and the communicating ring is communicated with the liquid supply pipe.

6. The apparatus for uniform spraying of spectacle frames according to claim 5, characterized in that, The alternating inner support clamping assembly includes a fixed disk frame, a rotating disk frame, a first lifting frame and a second lifting frame. The fixed disk frame is fixedly connected to the main column, and the rotating disk frame is rotatably connected to the main column. A third servo motor is installed on the fixed disk frame, and the third servo motor is used for the rotational adjustment of the rotating disk frame relative to the fixed disk frame. Two first moving frames are slidably connected to the fixed disk frame, and both of the two first moving frames are connected to the first lifting frame. Two second moving frames are slidably connected to the rotating disk frame, and both of the two second moving frames are connected to the second lifting frame. The first lifting frame and the second lifting frame are both connected to the main column. A first electric telescopic rod and a second electric telescopic rod are respectively installed on the fixed disk frame and the rotating disk frame. The telescopic rod of the first electric telescopic rod and the telescopic rod of the second electric telescopic rod are respectively connected to the first lifting frame and the second lifting frame.

7. The apparatus for uniform spraying of spectacle frames according to claim 6, characterized in that, First surrounding openings are respectively formed on the fixed disk frame and the first lifting frame, and both of the two first surrounding openings are matched with the second electric telescopic rod. Second surrounding openings are respectively formed on the rotating disk frame and the second lifting frame, and both of the two second surrounding openings are matched with the first electric telescopic rod.

8. The apparatus for uniform spraying of spectacle frames according to claim 7, characterized in that, Two transmission frames are respectively hinged to the first lifting frame and the second lifting frame. Hinge ears are fixedly connected to both of the two first moving frames and both of the two second moving frames. The four hinge ears are respectively rotatably connected to the four transmission frames. Insertion support rods are fixedly connected to both of the two first moving frames and both of the two second moving frames. The four insertion support rods are all matched with the target spectacle frame.

9. The apparatus for uniform spraying of spectacle frames according to claim 8, characterized in that, Drive gears are respectively installed on the output shafts of the first servo motor, the second servo motor and the third servo motor. A transmission gear ring, a transmission rack and a transmission half gear ring are respectively installed outside the rotating table, on the bent arm and on the rotating disk frame. The transmission gear ring, the transmission rack and the transmission half gear ring are respectively meshed with the three drive gears.

10. A process for uniform spraying of spectacle frames, characterized in that, Using a device for uniform spraying of spectacle frames according to any one of claims 1-9, includes the following steps: S1. During use, first control the sandwich frame to move away from the main column by adjusting the rotating assembly. Then, form support and positioning for the target spectacle frame to be spray-painted through the alternating inner support clamping assembly. Next, start the distance sensor and control the sandwich frame to move closer to the main column by adjusting the rotating assembly. S2. When the target spectacle frame is inserted relative to the sandwich frame and the distance sensor detects that it enters an appropriate spraying distance from the target spectacle frame, stop the further insertion movement of the target spectacle frame relative to the sandwich frame. Then, form a surrounding movement of the sandwich frame relative to the target spectacle frame by adjusting the rotating assembly. During the surrounding movement, the distance sensor continuously detects the relative distance between the sandwich frame and the target spectacle frame to form the relative position adjustment between the target spectacle frame and the sandwich frame. S3. After the target spectacle frame is inserted in place relative to the sandwich frame, first start the re-suction pump to make the re-suction vertical pipe form adsorption, and blow out the air adsorbed by the re-suction vertical pipe through the converging vertical pipe. Then, supply a pressurized paint solution to the supply pipe and ensure the stability of the pressure in the supply pipe. S4. The paint solution entering the supply pipe will be ejected through the top spray holes, bottom spray holes and side spray holes to form atomization. The atomized paint will then form a coating operation relative to the target spectacle frame. During the coating operation, the sandwich holder will move around the target spectacle frame to achieve full coverage spraying of the target spectacle frame. S5. When there is no paint liquid pressure in the supply pipe, the pressure-adjusting assembly will keep the suction vertical pipe raised relative to the sandwich holder to facilitate the insertion and removal of the target spectacle frame relative to the sandwich holder. During the spraying operation, there is paint liquid pressure in the supply pipe, which makes the pressure-adjusting assembly also under pressure. Therefore, the suction vertical pipe will fall relative to the sandwich holder so that the adsorption area of the suction vertical pipe corresponds to the spraying area of the sandwich holder.

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