Coating machine

Abstract

The invention relates to the technical field of coating equipment, in particular to a coating machine which comprises a plurality of drying parts and coating media fixedly arranged on the outer side of an inner ring part and the inner side of an outer ring part respectively and used for slicking and drying the surface of a to-be-coated part, each drying part comprises a drying body and a plurality of air outlets, and the air outlets are all located on the outer side of the drying body and incline upwards; the rotating part on the outer side of the outer ring part drives the bottom-layer outer ring and the top-layer outer ring to rotate in opposite directions through the outer ring teeth, and the spray head is driven to rotate along the surface of the to-be-plated part, so that a coating medium sprayed by the spray head is uniformly attached to the surface of the to-be-plated part; the rotating drying body uniformly scrapes a coating medium on the surface of the to-be-coated piece, the coating medium is prevented from being accumulated on the surface of the to-be-coated piece, the thickness of a coating film is not uniform, hot air flow blown out by a fan and a heating wire in the drying part is blown out along an obliquely upward air outlet, and the coating medium with the dry surface of the to-be-coated piece is blown upwards. And a sagging phenomenon caused by downward gathering of a coating medium and influence on the film forming quality are prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of coating equipment, and particularly to a coating machine. Background Art

[0002] A coating machine is a device used to deposit one or more layers of thin films on the surface of materials, and can form thin films with specific functions on glass or ceramic articles, such as optical coatings, decorative coatings, protective coatings, etc. In the process of spraying coating medium, traditional coating machines generally use fixed nozzles to directly spray on glass or ceramic articles, and the glass or ceramic articles themselves are also stationary and directly receive the spraying. Although this spraying method can achieve full coverage spraying on glass or ceramic articles, due to the fixed direct spraying, there will inevitably be spraying dead angles during the spraying process, resulting in uneven local spraying. Moreover, during the drying and curing process after the coating medium is sprayed, the coated glass or ceramic articles are generally directly placed in a high-temperature environment or a ventilated environment for drying, and the glass or ceramic articles are also stationary during the drying process. This method can also achieve the drying and curing effect of the coating on the surface of the glass or ceramic articles as the drying time increases. However, since all surfaces or points of the glass or ceramic articles are in the same drying environment, for example, the surfaces facing the drying source dry faster, and the surfaces facing away from the drying source dry slower, it will cause problems of low drying efficiency and uneven drying. This method will also cause inconsistent drying and curing times due to the different distances between different points on the glass or ceramic articles and the drying source, and then lead to different drying and curing speeds and degrees of coating on different regions of the entire glass or ceramic article, which will affect the final product quality. Summary of the Invention

[0003] The main purpose of the present invention is to provide a coating machine to solve the problems in the related art that due to the fixation of the nozzle and the workpiece during spraying, there are spraying dead angles and unevenness of the coating medium in traditional coating machines, and at the same time, the fixation of the workpiece during drying and curing causes different surface heating / ventilation differences, resulting in low drying efficiency and inconsistent curing degree, affecting the product quality.

[0004] To achieve the above object, according to one aspect of the present invention, there is provided a coating machine, including a support mechanism, a storage part fixedly arranged on the top of the support mechanism, and a supporting part fixedly arranged on the upper surface of the bottom of the support mechanism, and further including:

[0005] A coating mechanism, the coating mechanism is fixedly arranged above the support mechanism and below the storage part, the coating mechanism includes an outer ring part and an inner ring part, and the outer ring part and the inner ring part rotate in opposite directions;

[0006] Sprayers, several of which are respectively fixed on the outer side of the inner ring part and the inner side of the outer ring part, and the outer ring part and the inner ring part drive the sprayers to rotate in opposite directions respectively to coat the inner and outer surfaces of the workpiece to be plated simultaneously;

[0007] Drying parts, several of which are respectively fixed on the outer side of the inner ring part and the inner side of the outer ring part, and are used to scrape and dry the coating medium on the surface of the workpiece to be plated. The drying parts include drying bodies and several air outlets, and the air outlets are all located on the outer side of the drying bodies and are inclined upward;

[0008] Connecting parts, several of which are respectively arranged inside the inner ring part and the outer ring part.

[0009] Furthermore, the support mechanism includes a bottom plate, a connecting rod, a connecting ring, a support plate, and a power source. The power source is fixed on the upper surface of the bottom plate, the connecting rod is fixed on the top of the power source, the support plate is fixed on the top of the connecting rod, and the connecting ring is fixed on the bottom of the support plate.

[0010] Furthermore, the material storage part includes a material storage barrel and several discharge pipes. The material storage barrel is fixed above the support plate, one end of the discharge pipe is communicated with the material storage barrel, and the other end is communicated with the coating mechanism.

[0011] Furthermore, the coating mechanism further includes several rotating parts and several guiding parts. The rotating parts are used to drive the inner ring part and the outer ring part to rotate, and the guiding parts are used to guide the inner ring part and the outer ring part. The outer ring part includes a bottom outer ring, several outer ring teeth, and a top outer ring. The top outer ring rotates above the bottom outer ring, and the outer ring teeth are all axially fixed on the outer sides of the bottom outer ring and the top outer ring. The inner ring part includes a bottom inner ring, several inner ring teeth, and a top inner ring. The top inner ring rotates above the bottom inner ring, and the inner ring teeth are all axially fixed on the inner sides of the bottom inner ring and the top inner ring. The rotating part on the outer side of the outer ring part drives the bottom outer ring and the top outer ring to rotate in opposite directions through the outer ring teeth, and the rotating part on the inner side of the inner ring part drives the bottom inner ring and the top inner ring to rotate in opposite directions through the inner ring teeth. The coating mechanism further includes a limiting group, a connecting ring group, and an internal driving mechanism. The limiting group includes several limiting blocks and limiting grooves, the connecting ring group includes several support rods, an outer connecting ring, and an inner connecting ring, and the internal driving mechanism includes an internal support ring, several rotating parts, and several guiding parts.

[0012] Furthermore, the outer connecting ring rotates on the top of the top outer ring, the inner connecting ring rotates on the top of the top inner ring, limiting grooves are arranged on the outer sides of the outer connecting ring and the inner connecting ring, the limiting blocks slide in the limiting grooves, and the outer ends of the limiting blocks on the outer side of the inner connecting ring are fixedly connected to the inner side of the outer connecting ring.

[0013] Further, the rotating part includes a bracket group, a driving group, and a driven group. The bracket group includes a first connecting block, a first bottom support plate, and a first top support plate. The driving group includes a motor, a rotating shaft, and a driving bevel gear. The driven group includes a first driven bevel gear, a first driven wheel, a second driven bevel gear, and a second driven wheel.

[0014] Further, the first connecting block is fixedly arranged at the lower end of the connecting ring. The end of the support rod is fixedly connected to the first connecting block. The motor is fixedly arranged outside the first connecting block. The rotating shaft is rotatably arranged inside the first connecting block and is fixedly connected to the motor. The driving bevel gear is fixedly arranged at the outer end of the rotating shaft. The first bottom support plate is fixedly arranged at the inner bottom end of the first connecting block. The first top support plate is fixedly arranged at the inner upper end of the first connecting block. The first driven wheel is rotatably arranged on the bottom surface of the first top support plate. The first driven bevel gear is coaxially fixedly arranged at the bottom end of the first driven wheel. The first driven bevel gear meshes with the driving bevel gear. The second driven wheel is rotatably arranged on the top surface of the first bottom support plate. The second driven bevel gear is coaxially fixedly arranged at the top end of the second driven wheel. The second driven bevel gear meshes with the driving bevel gear. The first driven wheel of the rotating part meshes with the outer teeth of the top outer ring. The second driven wheel of the rotating part meshes with the outer teeth of the bottom outer ring. The first driven wheel of the internal driving mechanism meshes with the inner teeth of the top inner ring. The second driven wheel of the internal driving mechanism meshes with the inner teeth of the bottom inner ring.

[0015] Further, the guiding part includes a support group and a rotating group. The support group includes a second connecting block, a second bottom support plate, and a second top support plate. The rotating group includes a first limiting gear and a second limiting gear. The second connecting block is fixedly arranged at the bottom end of the connecting ring. The second bottom support plate is fixedly arranged at the inner bottom end of the second connecting block. The second top support plate is fixedly arranged at the inner middle part. The first limiting gear is rotatably arranged below the second top support plate. The second limiting gear is rotatably arranged above the second bottom support plate. The first limiting gear of the guiding part meshes with the outer teeth of the top outer ring. The second limiting gear of the guiding part meshes with the outer teeth of the bottom outer ring. The first limiting gear of the internal driving mechanism meshes with the inner teeth of the top inner ring. The second limiting gear of the internal driving mechanism meshes with the inner teeth of the bottom inner ring.

[0016] Further, the supporting part includes a support column, a plurality of suction cups, and a plurality of support plates. The support column is fixedly arranged above the bottom plate. The support plates are cross - fixedly arranged at the top end of the support column. The suction cups are all fixedly arranged on the upper surface of the support plates.

[0017] Further, the connecting part includes a plurality of discharge channels, a plurality of connecting columns, a plurality of clamping blocks and a plurality of clamping grooves. Upper and lower sections of discharge channels are provided in each of the outer bottom layer, outer top layer, inner bottom layer and inner top layer. The middle parts of the two sections of discharge channels are connected by connecting columns, and a connecting channel is arranged in the connecting columns. The top end of the discharge channel is communicated with a discharge pipe. The connecting columns are located in the discharge channels. The connecting columns on the outer ring are respectively fixedly arranged in the outer bottom layer and the outer top layer, and the connecting columns on the inner ring are respectively fixedly arranged in the inner bottom layer and the inner top layer. The clamping blocks and the clamping grooves are annular, and the clamping blocks are slidably arranged in the clamping grooves. Clamping grooves are fixedly arranged at the bottom of the outer connecting ring, at the bottom of the support ring at the top of the inner ring part, and at the bottoms of the outer top layer and the inner top layer. Clamping blocks are fixedly arranged at the tops of the outer bottom layer, the outer top layer, the inner bottom layer and the inner top layer.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The rotating parts on the outer side of the outer ring part of the present invention drive the outer bottom layer and the outer top layer to rotate in opposite directions through the outer ring teeth, and the rotating parts on the inner side of the inner ring part drive the inner bottom layer and the inner top layer to rotate in opposite directions through the inner ring teeth, driving the spray head to rotate along the surface of the workpiece to be plated, so that the coating medium sprayed by the spray head is evenly attached to the surface of the workpiece to be plated; The rotating drying body smears the coating medium on the surface of the workpiece to be plated evenly, preventing the coating medium from accumulating on the surface of the workpiece to be plated and causing uneven thickness of the coating. The hot air flow blown out by the fan and the heating wire in the drying part blows out along the inclined upward air outlet, blowing the undried coating medium on the surface of the workpiece to be plated upward, preventing the coating medium from aggregating downward and causing sagging, which affects the film forming quality. Moreover, since the drying part is distributed in two layers inside and outside and is in a rotating state, a comprehensive, efficient and uniform drying and curing effect can be achieved on the coating medium. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the whole of the present invention;

[0020] Figure 2 is a schematic diagram of the structure of the coating mechanism of the present invention;

[0021] Figure 3 is a schematic diagram of the structure of the rotating part of the present invention;

[0022] Figure 4 is a schematic diagram of the structure of the guiding part of the present invention;

[0023] Figure 5 is a cross-sectional view of the coating mechanism of the present invention;

[0024] Figure 6 is a schematic diagram of the structure of the internal driving mechanism of the present invention;

[0025] Figure 7 is a sectional view of the coating mechanism of the present invention;

[0026] Figure 8 Schematic diagram of the connection part structure of the coating mechanism of the present invention;

[0027] Figure 9 Schematic diagram of the structure of the drying part of the present invention.

[0028] Illustration:

[0029] 1. Support mechanism; 11. Base plate; 12. Electric cylinder; 13. Connecting rod; 14. Connecting ring; 15. Support plate;

[0030] 2. Material storage part; 21. Material storage barrel; 22. Discharge pipe;

[0031] 3. Coating mechanism; 30. Support rod; 31. Rotating part; 32. Guiding part; 33. Limiting block; 34. Limiting groove; 35. Outer connecting ring; 36. Inner connecting ring; 37. Internal driving mechanism; 38. Outer ring part; 39. Inner ring part; 310. First connecting block; 311. Motor; 312. Rotating shaft; 313. Active bevel gear; 314. First bottom support plate; 315. First top support plate; 316. First driven bevel gear; 317. First driven wheel; 318. Second driven bevel gear; 319. Second driven wheel; 321. Second connecting block; 322. Second bottom support plate; 323. Second top support plate; 324. First limiting gear; 325. Second limiting gear; 371. Internal support ring; 381. Bottom outer ring; 382. Top outer ring; 383. Outer ring teeth; 391. Bottom inner ring; 392. Top inner ring; 393. Inner ring teeth;

[0032] 4. Supporting part; 41. Support column; 42. Suction cup; 43. Support plate;

[0033] 5. Workpiece to be coated;

[0034] 6. Sprayer;

[0035] 7. Drying part; 71. Drying body; 72. Air outlet;

[0036] 8. Connecting part; 81. Discharge channel; 82. Connecting column; 83. Clamping block; 84. Clamping groove. Detailed implementation method

[0037] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following combines the drawings and preferred embodiments to describe in detail the specific implementation method, structure, characteristics and their effects of the present invention as follows.

[0038] Please refer to Figure 1 , this embodiment provides a coating machine, including: a support mechanism 1, the support mechanism 1 is used to support the coating mechanism 3, and the support mechanism 1 includes a power source, and the power source is used to drive the coating mechanism 3 to move up and down;

[0039] The material storage part 2 is fixedly arranged above the support mechanism 1, and is used for storing the coating medium and pressing the coating medium into the coating mechanism 3;

[0040] Please refer to Figure 2 , the coating mechanism 3 is fixedly arranged above the support mechanism 1 and is located below the material storage part 2. The coating mechanism 3 includes an inner ring part 39, an outer ring part 38, a plurality of rotating parts 31 and a plurality of guiding parts 32. The rotating parts 31 are used to drive the inner ring part 39 and the outer ring part 38 to rotate, and the guiding parts 32 are used to guide the inner ring part 39 and the outer ring part 38;

[0041] Please refer to Figure 5 , the outer ring part 38 includes a bottom outer ring 381, a plurality of outer ring teeth 383 and a top outer ring 382. The top outer ring 382 is rotatably arranged above the bottom outer ring 381. The outer ring teeth 383 are all axially fixed on the outer sides of the bottom outer ring 381 and the top outer ring 382. The inner ring part 39 includes a bottom inner ring 391, a plurality of inner ring teeth 393 and a top inner ring 392. The top inner ring 392 is rotatably arranged above the bottom inner ring 391. The inner ring teeth 393 are all axially fixed on the inner sides of the bottom inner ring 391 and the top inner ring 392. The rotating parts 31 on the outer side of the outer ring part 38 drive the bottom outer ring 381 and the top outer ring 382 to rotate in opposite directions through the outer ring teeth 383, and the rotating parts 31 on the inner side of the inner ring part 39 drive the bottom inner ring 391 and the top inner ring 392 to rotate in opposite directions through the inner ring teeth 393;

[0042] The supporting part 4 is fixedly arranged above the support mechanism 1 and is used for placing the workpiece to be coated 5. The workpiece to be coated 5 is a glass part or a ceramic part;

[0043] There are a plurality of nozzles 6, which are respectively fixedly arranged on the outer side of the inner ring part 39 and the inner side of the outer ring part 38. The nozzles 6 on the outer side of the inner ring part 39 perform coating operations on the inner surface of the workpiece to be coated 5, and the nozzles 6 on the inner side of the outer ring part 38 perform coating operations on the outer surface of the workpiece to be coated 5;

[0044] Please refer to Figure 9 , the drying part 7, there are a plurality of drying parts 7, which are respectively fixedly arranged on the outer side of the inner ring part 39 and the inner side of the outer ring part 38, and are used for scraping and drying the coating medium on the surface of the workpiece to be coated 5. The drying part 7 includes a drying body 71 and a plurality of air outlets 72. The air outlets 72 are all located on the outer side of the drying body 71 and are inclined upward. A fan is arranged inside the drying body 71, and a heating wire is arranged in front of the fan. The air blown out by the fan is heated by the heating wire and then blown onto the workpiece to be coated 5 to accelerate the drying speed of the coating on its surface;

[0045] The air outlet 72 is inclined upward by 55°, and blows the undried coating medium on the surface of the workpiece to be coated 5 upward to prevent the coating medium from gathering downward and causing sagging, which affects the film forming quality.

[0046] The connecting parts 8, and there are several connecting parts 8 which are respectively arranged inside the inner ring part 39 and the outer ring part 38. The connecting parts 8 are connected to the material storage part 2 and are used to convey the coating medium in the material storage part 2 to the nozzle 6.

[0047] The support mechanism 1 includes a bottom plate 11, a connecting rod 13, a connecting ring 14 and a support plate 15. The power source is fixedly arranged on the upper surface of the bottom plate 11. In this embodiment, the electric cylinder 12 is preferably used as the power source to facilitate controlling the height of the connecting rod 13. The connecting rod 13 is fixedly arranged on the top of the power source, the support plate 15 is fixedly arranged on the top of the connecting rod 13, and the connecting ring 14 is fixedly arranged at the bottom of the support plate 15.

[0048] The material storage part 2 includes a material storage barrel 21 and several discharge pipes 22. The material storage barrel 21 is fixedly arranged above the support plate 15. One end of the discharge pipe 22 is communicated with the material storage barrel 21, and the other end is communicated with the coating mechanism 3. A booster pump is arranged in the material storage barrel 21 to pressurize the coating medium in the material storage barrel 21 so that it flows out from the discharge pipe 22.

[0049] Please refer to Figure 6 , the coating mechanism 3 further includes a limiting group, a connecting ring group and an internal driving mechanism 37. The internal driving mechanism 37 is used to drive the inner ring part 39 to rotate. The limiting group includes several limiting blocks 33 and limiting grooves 34. The connecting ring group includes several support rods 30, an outer connecting ring 35 and an inner connecting ring 36. The internal driving mechanism 37 includes an internal support ring 371, several rotating parts 31 and several guiding parts 32.

[0050] The outer connecting ring 35 is rotatably arranged on the top of the top layer outer ring 382, and the inner connecting ring 36 is rotatably arranged on the top of the top layer inner ring 392. Limiting grooves 34 are arranged on the outer sides of both the outer connecting ring 35 and the inner connecting ring 36. The limiting blocks 33 are slidably arranged in the limiting grooves 34. The outer ends of the limiting blocks 33 on the outer side of the inner connecting ring 36 are fixedly connected to the inner side of the outer connecting ring 35. The inner ring part 39 is supported on the outer connecting ring 35 through the limiting blocks 33.

[0051] Please refer to Figure 3 , the rotating part 31 includes a bracket group, a driving group and a driven group. The bracket group includes a first connecting block 310, a first bottom support plate 314 and a first top support plate 315. The driving group includes a motor 311, a rotating shaft 312 and a driving bevel gear 313. The driven group includes a first driven bevel gear 316, a first driven wheel 317, a second driven bevel gear 318 and a second driven wheel 319.

[0052] The first connecting block 310 is fixedly arranged at the lower end of the connecting ring 14. The end of the support rod 30 is fixedly connected to the first connecting block 310. The motor 311 is fixedly arranged outside the first connecting block 310. The rotating shaft 312 is rotatably arranged inside the first connecting block 310 and is fixedly connected to the motor 311. The driving bevel gear 313 is fixedly arranged at the outer end of the rotating shaft 312. The first bottom support plate 314 is fixedly arranged at the inner bottom end of the first connecting block 310. The first top support plate 315 is fixedly arranged at the inner upper end of the first connecting block 310. The first driven wheel 317 is rotatably arranged on the bottom surface of the first top support plate 315. The first driven bevel gear 316 is coaxially fixedly arranged at the bottom end of the first driven wheel 317. The first driven bevel gear 316 meshes with the driving bevel gear 313. The second driven wheel 319 is rotatably arranged on the top surface of the first bottom support plate 314. The second driven bevel gear 318 is coaxially fixedly arranged at the top end of the second driven wheel 319. The second driven bevel gear 318 meshes with the driving bevel gear 313. The first driven wheel 317 of the rotating part 31 meshes with the outer ring teeth 383 of the top layer outer ring 382. The second driven wheel 319 of the rotating part 31 meshes with the outer ring teeth 383 of the bottom layer outer ring 381. The first driven wheel 317 of the internal driving mechanism 37 meshes with the inner ring teeth 393 of the top layer inner ring 392. The second driven wheel 319 of the internal driving mechanism 37 meshes with the inner ring teeth 393 of the bottom layer inner ring 391.

[0053] Please refer to Figure 4 , the guiding part 32 includes a support group and a rotating group. The support group includes a second connecting block 321, a second bottom support plate 322 and a second top support plate 323. The rotating group includes a first limiting gear 324 and a second limiting gear 325. The second connecting block 321 is fixedly arranged at the bottom end of the connecting ring 14. The second bottom support plate 322 is fixedly arranged at the inner bottom end of the second connecting block 321. The second top support plate 323 is fixedly arranged at the inner middle part. The first limiting gear 324 is rotatably arranged below the second top support plate 323. The second limiting gear 325 is rotatably arranged above the second bottom support plate 322. The first limiting gear 324 of the guiding part 32 meshes with the outer ring teeth 383 of the top layer outer ring 382. The second limiting gear 325 of the guiding part 32 meshes with the outer ring teeth 383 of the bottom layer outer ring 381. The first limiting gear 324 of the internal driving mechanism 37 meshes with the inner ring teeth 393 of the top layer inner ring 392. The second limiting gear 325 of the internal driving mechanism 37 meshes with the inner ring teeth 393 of the bottom layer inner ring 391.

[0054] The supporting part 4 includes a support column 41, a plurality of suction cups 42 and a plurality of support plates 43. The support column 41 is fixedly arranged above the bottom plate 11. The support plates 43 are cross-fixed at the top end of the support column 41. The suction cups 42 are all fixedly arranged on the upper surface of the support plates 43. The suction cups 42 are used to adsorb the workpiece to be plated 5 on the support plates 43.

[0055] Please refer to Figure 7 、 Figure 8, the connecting part 8 includes a plurality of discharge channels 81, a plurality of connecting columns 82, a plurality of clamping blocks 83 and a plurality of clamping grooves 84. There are upper and lower sections of discharge channels 81 in both the bottom outer ring 381, the top outer ring 382, the bottom inner ring 391 and the top inner ring 392. The middle parts of the two sections of discharge channels 81 are connected by the connecting columns 82. A connecting channel is provided in the connecting column 82. The coating medium flows from the upper section of the discharge channel 81 into the lower section of the discharge channel 81 through the connecting channel. The top end of the discharge channel 81 is communicated with the discharge pipe 22. The connecting columns 82 are located in the discharge channels 81. The connecting columns 82 on the outer ring are respectively fixedly arranged in the bottom outer ring 381 and the top outer ring 382 to strengthen the connection strength between the bottom outer ring 381 and the top outer ring 382. The connecting columns 82 on the inner ring are respectively fixedly arranged in the bottom inner ring 391 and the top inner ring 392 to strengthen the connection strength between the bottom inner ring 391 and the top inner ring 392.

[0056] The clamping blocks 83 and the clamping grooves 84 are annular. The clamping blocks 83 are slidably arranged in the clamping grooves 84. Clamping grooves 84 are fixedly provided at the bottom of the outer connecting ring 35, the bottom of the support ring at the top of the inner ring part 39, and the bottoms of the top outer ring 382 and the top inner ring 392. Clamping blocks 83 are fixedly provided at the tops of the bottom outer ring 381, the top outer ring 382, the bottom inner ring 391 and the top inner ring 392.

[0057] Place the workpiece 5 to be coated made of glass or ceramic in the middle of the intersection of the pallet 43 and press it downwards. The suction cup 42 sucks the workpiece 5 and fixes the workpiece 5 on the pallet 43. Start the electric cylinder 12. The telescopic rod of the electric cylinder 12 retracts, and drives the support plate 15 to move downwards through the connecting rod 13. The support plate 15 drives the material storage part 2 and the coating mechanism 3 to move downwards synchronously, so that the outer ring part 38 is located outside the workpiece 5 and the inner ring part 39 is located inside the workpiece 5, and the workpiece 5 is wrapped in the coating mechanism 3. At the same time, start all the motors 311. The motors 311 drive the driving bevel gears 313 to rotate through the rotating shafts 312. The driving bevel gears 313 drive the first driven bevel gears 316 and the second driven bevel gears 318 to rotate synchronously and in opposite directions. The first driven bevel gears 316 drive the first driven wheels 317 to rotate. The first driven wheels 317 drive the top outer ring 382 to rotate through the outer ring teeth 383. At the same time, the second driven bevel gears 318 drive the second driven wheels 319 to rotate. The second driven wheels 319 drive the bottom outer ring 381 to rotate through the outer ring teeth 383, and the rotation directions of the bottom outer ring 381 and the top outer ring 382 are opposite. Similarly, the rotating part 31 inside the coating mechanism 3 drives the bottom inner ring 391 and the top inner ring 392 to rotate in opposite directions through the inner ring teeth 393;

[0058] Start the booster pump inside the storage barrel 21. The booster pump presses the molten coating medium in the storage barrel 21 downward and enters the discharge channels 81 in the top outer ring 382 and the top inner ring 392 respectively through the discharge pipe 22. A part of the coating medium is ejected from the nozzles 6 in the top outer ring 382 and the top inner ring 392. The nozzles 6 in the top outer ring 382 perform spray coating on the upper part of the outer surface of the workpiece to be coated 5, and the nozzles 6 in the top inner ring 392 perform spray coating on the upper part of the inner surface of the workpiece to be coated 5. Another part of the coating medium continues to flow downward along the discharge channels 81 inside the top outer ring 382 and the top inner ring 392, enters the discharge channels 81 inside the bottom outer ring 381 and the bottom inner ring 391, and is ejected from the nozzles 6 in the bottom outer ring 381 and the bottom inner ring 391. The nozzles 6 in the bottom outer ring 381 perform spray coating on the lower part of the outer surface of the workpiece to be coated 5, and the nozzles 6 in the bottom inner ring 391 perform spray coating on the lower part of the inner surface of the workpiece to be coated 5. The bottom outer ring 381 and the top outer ring 382 as well as the bottom inner ring 391 and the top inner ring 392 that rotate in the reverse direction make the coating medium ejected from the nozzles 6 be sprayed more evenly on the inner and outer surfaces of the workpiece to be coated 5. At the same time, the drying body 71 rotates synchronously with the bottom outer ring 381 and the top outer ring 382 as well as the bottom inner ring 391 and the top inner ring 392, and scrapes and levels the coating medium on the surface of the workpiece to be coated 5 to prevent the coating medium from accumulating on the surface of the workpiece to be coated 5, resulting in uneven coating thickness. After the coating is completed, turn off the booster pump in the storage barrel 21, and the coating medium stops ejecting. Start the fan and heating wire in the drying part 7. The fan and heating wire blow out hot air flow, and the hot air flow blows out along the inclined upward air outlet 72, blowing the undried coating medium on the surface of the workpiece to be coated 5 upward to prevent the coating medium from gathering downward and causing sagging, which affects the film forming quality. Moreover, since the drying part is distributed with two inner and outer layers and is in a rotating state, it can achieve a comprehensive, efficient and uniform drying and curing effect on the coating medium; after the coating medium is completely dried, turn off the fan and heating wire in the drying part 7, and then start the electric cylinder 12. The telescopic rod of the electric cylinder 12 extends, driving the coating mechanism 3 to move upward and leave the workpiece to be coated 5, and take away the workpiece to be coated 5 from the support plate 43, and the next round of coating operation can be carried out.

[0059] The above is only a preferred embodiment of the present invention, and it does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to form an equivalent embodiment with equivalent changes, but as long as it does not depart from the technical content of the present invention, any brief modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A coating machine, comprising a support mechanism (1), a material storage portion (2) fixedly arranged on the top of the support mechanism (1), and a supporting portion (4) fixedly arranged on the upper surface of the bottom of the support mechanism (1), characterized in that: Also includes: A coating mechanism (3), wherein the coating mechanism (3) is fixedly arranged above the support mechanism (1) and located below the material storage portion (2), and the coating mechanism (3) comprises an outer ring portion (38) and an inner ring portion (39), and the outer ring portion (38) and the inner ring portion (39) rotate in opposite directions; A plurality of nozzles (6) are fixedly arranged on the outer side of the inner ring portion and the inner side of the outer ring portion, respectively. The outer ring portion (38) and the inner ring portion (39) respectively drive the nozzles (6) to rotate in opposite directions, so as to coat the inner and outer surfaces of the workpiece (5) at the same time. A drying section (7), wherein the drying sections (7) are provided in a plurality and are respectively fixedly arranged on the outer side of the inner ring section and the inner side of the outer ring section, and are used for flattening and drying the coating medium on the surface of the workpiece (5) to be plated. The drying section (7) comprises a drying body (71) and a plurality of air outlets (72), and the air outlets (72) are all located on the outer side of the drying body (71) and are inclined upward. A connecting part (8), wherein there are a plurality of connecting parts (8), and the connecting parts (8) are respectively arranged inside the inner ring part (39) and the outer ring part (38).

2. The coating machine according to claim 1, characterized in that: The support mechanism (1) comprises a base plate (11), a connecting rod (13), a connecting ring (14), a support plate (15), and a power source, wherein the power source is fixedly arranged on the upper surface of the base plate (11), the connecting rod (13) is fixedly arranged on the top of the power source, the support plate (15) is fixedly arranged on the top of the connecting rod (13), and the connecting ring (14) is fixedly arranged on the bottom of the support plate (15).

3. The coating machine according to claim 2, characterized in that: The material storage portion (2) comprises a material storage barrel (21) and a plurality of discharge pipes (22); the material storage barrel (21) is fixedly arranged above the support plate (15); one end of the discharge pipe (22) is connected to the material storage barrel (21), and the other end is connected to the coating mechanism (3).

4. The coating machine according to claim 1, characterized in that: The coating mechanism (3) further comprises a plurality of rotating parts (31) and a plurality of guiding parts (32), wherein the rotating parts (31) are used to drive the inner ring part and the outer ring part to rotate, and the guiding parts (32) are used to guide the inner ring part and the outer ring part, wherein the outer ring part comprises a bottom outer ring (381), a plurality of outer ring teeth (383) and a top outer ring (382), wherein the top outer ring (382) is rotatably arranged above the bottom outer ring (381), and the outer ring teeth (383) are all axially fixedly arranged on the outside of the bottom outer ring (381) and the top outer ring (382), and the inner ring part comprises a bottom inner ring (391), a plurality of inner ring teeth (393) and a top inner ring (392), wherein the top inner ring (392) is rotatably arranged above the bottom inner ring (391), and the inner ring teeth (393) are all axially fixedly arranged on the outside of the bottom inner ring (391). The coating mechanism (3) is fixedly arranged on the inner side of the bottom inner ring (391) and the top inner ring (392); the rotating part (31) on the outer side of the outer ring drives the bottom outer ring (381) and the top outer ring (382) to rotate in the opposite direction through the outer ring teeth (383); the rotating part (31) on the inner side of the inner ring drives the bottom inner ring (391) and the top inner ring (392) to rotate in the opposite direction through the inner ring teeth (393); the coating mechanism (3) also includes a limit group, a connecting ring group and an internal driving mechanism (37); the limit group includes a plurality of limit blocks (33) and limit grooves (34); the connecting ring group includes a plurality of support rods (30), an outer connecting ring (35) and an inner connecting ring (36); the internal driving mechanism (37) includes an internal supporting ring (371), a plurality of rotating parts (31) and a plurality of guide parts (32).

5. The coating machine according to claim 4, characterized in that: The outer connecting ring (35) is rotatably arranged at the top of the top outer ring (382), and the inner connecting ring (36) is rotatably arranged at the top of the top inner ring (392). The outer sides of the outer connecting ring (35) and the inner connecting ring (36) are both provided with limiting grooves (34), and the limiting blocks (33) are slidably arranged in the limiting grooves (34). The outer end of the limiting block (33) on the outer side of the inner connecting ring (36) is fixedly connected to the inner side of the outer connecting ring (35).

6. The coating machine according to claim 5, characterized in that: The rotating part (31) comprises a support group, a driving group and a driven group, the support group comprises a first connecting block (310), a first bottom support plate (314) and a first top support plate (315), the driving group comprises a motor (311), a rotating shaft (312) and a driving bevel gear (313), and the driven group comprises a first driven bevel gear (316), a first driven wheel (317), a second driven bevel gear (318) and a second driven wheel (319).

7. The coating machine according to claim 6, characterized in that: The first connecting block (310) is fixedly arranged at the lower end of the connecting ring (14); the end of the supporting rod (30) is fixedly connected to the first connecting block (310); the motor (311) is fixedly arranged at the outer side of the first connecting block (310); the rotating shaft (312) is rotatably arranged at the inner side of the first connecting block (310) and is fixedly connected to the motor (311); the driving bevel gear (313) is fixedly arranged at the outer end of the rotating shaft (312); the first bottom support plate (314) is fixedly arranged at the inner bottom end of the first connecting block (310); the first top support plate (315) is fixedly arranged at the inner upper end of the first connecting block (310); the first driven wheel (317) is rotatably arranged at the bottom surface of the first top support plate (315); the first driven bevel gear (316) is coaxially fixedly arranged at the bottom end of the first driven wheel (317); the first driven bevel gear (316) The first driven wheel (316) is meshed with the driving bevel gear (313), the second driven wheel (319) is rotatably arranged on the top surface of the first bottom support plate (314), the second driven bevel gear (318) is coaxially fixedly arranged on the top of the second driven wheel (319), the second driven bevel gear (318) is meshed with the driving bevel gear (313), the first driven wheel (317) of the rotating part (31) is meshed with the outer ring teeth (383) of the top outer ring (382), the second driven wheel (319) of the rotating part (31) is meshed with the outer ring teeth (383) of the bottom outer ring 381, the first driven wheel (317) of the internal driving mechanism (37) is meshed with the inner ring teeth (393) of the top inner ring (392), and the second driven wheel (319) of the internal driving mechanism (37) is meshed with the inner ring teeth (393) of the bottom inner ring (391).

8. The coating machine according to claim 4, characterized in that: The guide portion (32) comprises a support group and a rotation group, the support group comprises a second connection block (321), a second bottom support plate (322) and a second top support plate (323), the rotation group comprises a first limit gear (324) and a second limit gear (325), the second connection block (321) is fixedly arranged at the bottom end of the connection ring (14), the second bottom support plate (322) is fixedly arranged at the inner side of the bottom end of the second connection block (321), the second top support plate (323) is fixedly arranged at the inner side of the middle part, the first limit gear (324) is rotatably arranged below the second top support plate (323), and the second The limit gear (325) is rotatably arranged above the second bottom support plate (322); the first limit gear (324) of the guide portion (32) is meshed with the outer ring teeth (383) of the top outer ring (382); the second limit gear (325) of the guide portion (32) is meshed with the outer ring teeth (383) of the bottom outer ring (381); the first limit gear (324) of the internal drive mechanism (37) is meshed with the inner ring teeth (393) of the top inner ring (392); and the second limit gear (325) of the internal drive mechanism (37) is meshed with the inner ring teeth (393) of the bottom inner ring (391).

9. The coating machine according to claim 2, characterized in that: The supporting portion (4) comprises a supporting column (41), a plurality of suction cups (42) and a plurality of supporting plates (43); the supporting column (41) is fixedly arranged above the bottom plate (11); the supporting plates (43) are cross-fixed at the top of the supporting column (41); and the suction cups (42) are fixedly arranged on the upper surface of the supporting plates (43).

10. The coating machine according to claim 2, characterized in that: The connecting portion (8) comprises a plurality of discharge channels (81), a plurality of connecting columns (82), a plurality of clamping blocks (83) and a plurality of clamping grooves (84). The bottom outer ring (381), the top outer ring (382), the bottom inner ring (391) and the top inner ring (392) are each provided with an upper and lower section of discharge channels (81). The middle of the two sections of the discharge channels 81 are connected by a connecting column (82). A connecting channel is provided in the connecting column (82). The top end of the discharge channel (81) is connected to the discharge pipe (22). The connecting column (82) is located in the discharge channel (81). The connecting columns (82) of the outer ring are respectively fixed to the bottom outer ring (381). 81) and the top outer ring (382), the connecting column (82) of the inner ring is fixedly arranged in the bottom inner ring (391) and the top inner ring (392), respectively, the clamping block (83) and the clamping groove (84) are annular, the clamping block (83) is slidably arranged in the clamping groove (84), the bottom of the outer connecting ring (35) and the bottom of the support ring at the top of the inner ring (39) and the bottom of the top outer ring (382) and the top inner ring (392) are all fixedly provided with the clamping groove (84), and the top of the bottom outer ring (381), the top outer ring (382), the bottom inner ring (391) and the top inner ring (392) are all fixedly provided with the clamping block (83).

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