Coating device

Abstract

The invention discloses a film coating device which comprises a film coating box, a steam mechanism, a material placing mechanism and a driving mechanism, the coating box comprises a box body and a transmission part, and the transmission part is arranged in the box body; the steam mechanism is communicated with the box body and is used for conveying coating steam into the box body; the material placing mechanism comprises a mounting seat, a plurality of material arms and a plurality of matching parts, the mounting seat is rotationally mounted in the box body, the plurality of material arms are mounted on the mounting seat at intervals, each material arm can rotate around the own axis, and the plurality of matching parts are respectively arranged on the plurality of material arms, are in transmission connection with the transmission part and synchronously drive the material arms to rotate when the mounting seat rotates; the driving mechanism is arranged on the box body, is in driving connection with the mounting base and is used for driving the mounting base to rotate. According to the scheme, the workpiece is driven by one driving mechanism to revolve and rotate, so that each side of the workpiece can face a steam source, the coating uniformity of the workpiece is ensured, the coating quality is improved, and the power cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of film coating, and in particular to a film coating device. Background Art

[0002] Vacuum coating is a technique for producing thin film materials. In a vacuum deposition chamber, atoms of the material are separated from the heating source and hit the surface of the object being coated.

[0003] Publication No. CN221608172U discloses a vacuum coating device with uniform coating, in which a rotating frame assembly for hanging workpieces is arranged in the coating chamber, and a coating assembly for uniformly coating the workpieces is arranged around the rotating frame assembly. The rotating assembly is used to drive the workpieces to rotate, and the coating assembly can drive the gas supply branch pipe to rise and fall, thereby not only making the workpieces placed in the coating chamber rotate synchronously, but also making the coating steam spray up and down in the space around the workpiece.

[0004] However, in this patent, multiple workpieces are hung on a layer of hanging rods at the same time, and the multiple workpieces on the same layer only rotate synchronously around the axis of the hanging rod, while the gas branch pipe is located on the outside of the hanging rod, resulting in uneven coating on the inside and outside of the workpieces. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned technical deficiencies and propose a coating device to solve the technical problem in the prior art that multiple workpieces on the same layer only rotate synchronously around the axis of the hanging rod, while the gas branch pipe is located on the outside of the hanging rod, resulting in uneven coating on the inner and outer sides of the workpieces.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: The present invention provides a film coating device, comprising: The coating box comprises a box body and a transmission part, wherein the transmission part is arranged in the box body; The material placing mechanism comprises a mounting seat, a plurality of material arms and a plurality of matching parts, wherein the mounting seat is rotatably mounted in the box body, a plurality of material arms are installed at intervals on the mounting seat, each of the material arms can rotate around its own axis, a plurality of matching parts are respectively arranged on the plurality of material arms, and are transmission-connected with the transmission part, and synchronously drive the material arms to rotate when the mounting seat rotates; and The driving mechanism is arranged on the box body and is drivingly connected to the mounting seat, and is used for driving the mounting seat to rotate.

[0007] In some embodiments, the transmission part includes a transmission gear, and the transmission gear is installed on the box; The mating portion includes a mating gear, the mating gear is meshed with the transmission gear, and a plurality of the mating gears are sequentially arranged along the circumference of the transmission gear.

[0008] In some embodiments, the mounting seat has a mounting cavity, the mounting cavity has an avoidance opening and a mounting opening, the avoidance opening and the mounting opening are located on two opposite sides of the mounting seat, and a plurality of mounting openings are provided; The transmission part also includes a mounting shaft, one end of which is connected to the inner wall of the box body, and the other end of which extends from the avoidance opening into the mounting cavity, and the transmission gear is arranged at the end of the mounting shaft extending into the mounting cavity; One end of the plurality of material arms extends into the installation cavity from the plurality of avoidance openings respectively, and the matching gear is arranged at one end of the material arm located in the installation cavity.

[0009] In some embodiments, the material placing mechanism further comprises a driven gear, and the driven gear is mounted on the mounting seat; The driving mechanism includes a driving part and a driving gear. The driving part is installed on the box body and is drivingly connected to the driving gear. The driving gear is meshed with the driven gear.

[0010] In some embodiments, the material placing mechanism is provided with two groups, and the driven gears of the two groups are meshed with the driving gear.

[0011] In some embodiments, each group of the material placing mechanisms is provided with a plurality of materials, and the plurality of material placing mechanisms in the same group are arranged in sequence and at intervals; There are a plurality of driving gears, and the plurality of driving gears are arranged at intervals along the arrangement direction of the plurality of material placing mechanisms in the same group, and are respectively meshed with two adjacent driven gears; The driving mechanism further includes a driving shaft and a plurality of connecting parts. The driving shaft is rotatably mounted in the box and extends along the arrangement direction of the plurality of material placing mechanisms in the same group. The plurality of connecting parts are arranged on the driving shaft and are sequentially arranged along the axial direction of the driving shaft and are respectively connected to a plurality of driving gears for converting the rotation of the driving shaft into the rotation of the driving gears. The driving portion is drivingly connected to the driving shaft and is used to drive the driving shaft to rotate.

[0012] In some embodiments, the connecting portion includes a rotating shaft, a driven bevel gear and a driving bevel gear. The rotating shaft is rotatably installed in the box body, the driven bevel gear and the driving gear are installed on the rotating shaft and arranged in sequence along the axial direction of the rotating shaft, and the driving bevel gear is installed on the drive shaft and meshes with the driven bevel gear.

[0013] In some embodiments, the coating mechanism further includes a lead screw, a movable nut seat and a nozzle, wherein the lead screw is disposed in the housing and extends along the axial direction of the drive shaft, the movable nut seat is sleeved on the lead screw and moves along the axial direction when the lead screw rotates, and the nozzle is disposed on the movable nut seat for inputting coating vapor; The driving unit includes a driving motor, a transmission belt and two pulleys. The driving motor is installed on the box body and connected to the lead screw. The two pulleys are respectively arranged on the lead screw and the driving shaft, and the transmission belt is sleeved on the two pulleys.

[0014] In some embodiments, the coating mechanism further comprises a steam furnace, a connecting pipe and a flexible pipe, wherein the steam furnace, the connecting pipe, the flexible pipe and the nozzle are connected in sequence; and / or, The movable nut seat is provided with a guide channel along the extension direction of the lead screw. The coating box also includes a guide arm, which is arranged in the box body, extends along the axial direction of the lead screw, and passes through the guide channel.

[0015] In some embodiments, the coating mechanism also includes a filter box, a filter screen and an air duct. The filter box is arranged outside the box body and has an air inlet cavity and a cooling cavity. The air inlet cavity is connected to the box body. The filter screen is arranged in the air inlet cavity. The cooling cavity contains coolant and an exhaust port is provided above the coolant. One end of the air duct is connected to the air inlet cavity and is located downstream of the filter screen, and the other end extends into the coolant.

[0016] Compared with the prior art, in the coating device provided by the present invention, multiple workpieces are placed on multiple material arms, and when the driving mechanism drives the mounting seat to rotate, the multiple workpieces can be driven to rotate around the axis of the mounting seat. At the same time, since each material arm cooperates with the box body through the transmission part and the matching part, the rotation of the mounting seat relative to the box body can be converted into the rotation of the material arm around its own axis, so that each workpiece can also rotate around the axis of the material arm. In this way, this solution is driven by a driving mechanism to realize the revolution and rotation of the workpiece, so that each side of the workpiece can face the steam source, ensure the uniformity of the workpiece coating, improve the coating quality, and save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of a coating device provided by an embodiment of the present invention; Figure 2 yes Figure 1 A schematic diagram of another angle of the coating device; Figure 3 yes Figure 1 A cross-sectional view of the coating device; Figure 4 yes Figure 1Another cross-sectional view of the coating device; Figure 5 yes Figure 4 A partial schematic diagram of the coating device; Figure 6 yes Figure 5 A cross-sectional view of the middle mounting seat, the transmission part and the matching part; Figure 7 yes Figure 5 A cross-sectional view of the middle mounting seat, transmission part, matching part and material arm; Figure 8 yes Figure 5 Schematic diagram of the driving gear, driven gear and driven bevel gear; Fig. 9 yes Figure 1 Schematic diagram of the filter box.

[0018] Description of reference numerals: 1. Coating box; 11. Box body; 111. Transparent window; 12. Transmission unit; 121. Transmission gear; 122. Mounting shaft; 13. Guide arm; 14. Vacuum pump; 2. Steam mechanism; 21. Screw; 22. Movable nut seat; 221. Extension arm; 23. Nozzle; 231. Gas pipe; 24. Steam furnace; 25. Connecting pipe; 26. Flexible pipe; 27. Filter box; 27a. Exhaust port; 271. Exhaust pipeline; 272. Solenoid valve; 273. Guide bucket; 2 74. induced draft fan; 28. filter screen; 29. ​​induced air duct; 3. material placement mechanism; 31. mounting seat; 31a. mounting cavity; 32. material arm; 33. matching part; 331. matching gear; 34. driven gear; 35. hook; 4. driving mechanism; 41. driving part; 411. driving motor; 412. transmission belt; 413. pulley; 42. driving gear; 43. driving shaft; 44. connecting part; 441. rotating shaft; 442. driven bevel gear; 443. driving bevel gear. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] In order to solve the technical problem in the prior art that multiple workpieces on the same layer only rotate synchronously around the axis of the hanging rod, and the gas branch pipe is located on the outside of the hanging rod, resulting in uneven coating on the inner and outer sides of the workpieces, the present invention provides a coating device that can be driven by a driving mechanism to realize the revolution and rotation of the workpiece, so that each side of the workpiece can face the steam source, thereby ensuring the uniformity of the workpiece coating, improving the coating quality, and saving costs.

[0021] See also Figures 1 to 5 , Figures 1 to 5 It is a structural schematic diagram of a coating device in an embodiment of the present invention, the coating device includes a coating box 1, a material placement mechanism 3 and a driving mechanism 4; the coating box 1 includes a box body 11 and a transmission part 12, the transmission part 12 is arranged in the box body 11; the material placement mechanism 3 includes a mounting seat 31, a plurality of material arms 32 and a plurality of matching parts 33, the mounting seat 31 is rotatably mounted in the box body 11, a plurality of material arms 32 are installed on the mounting seat 31 at intervals, each material arm 32 can rotate around its own axis, a plurality of matching parts 33 are respectively arranged on the plurality of material arms 32, and are transmission-connected with the transmission part 12, and synchronously drive the material arms 32 to rotate when the mounting seat 31 rotates; the driving mechanism 4 is arranged in the box body 11, and is drivingly connected with the mounting seat 31, and is used to drive the mounting seat 31 to rotate.

[0022] In the coating device provided by the present invention, multiple workpieces are placed on multiple material arms 32, and when the driving mechanism 4 drives the mounting seat 31 to rotate, the multiple workpieces can be driven to rotate around the axis of the mounting seat 31. At the same time, since each material arm 32 and the box body 11 cooperate with each other through the transmission part 12 and the matching part 33, the rotation of the mounting seat 31 relative to the box body 11 can be converted into the rotation of the material arm 32 around its own axis, so that each workpiece can also rotate around the axis of the material arm 32. In this way, this solution is driven by a driving mechanism 4 to realize the revolution and rotation of the workpiece, so that each side of the workpiece can face the steam source, ensure the uniformity of the workpiece coating, improve the coating quality, and save costs.

[0023] It should be noted that, in one embodiment, the box 11 is configured as a vacuum box. Specifically, the coating box 1 further includes a vacuum pump 14, which is located outside the box 11, and its exhaust end is connected to the box 11. In addition, a transparent window is provided on the door of the box 11. In one embodiment, the coating device further includes a steam mechanism 2, which is connected to the box 11 and is used to transport coating vapor into the box 11.

[0024] It should be understood that the transmission part 12 and the matching part 33 are not limited in their arrangement, as long as they can transmit the rotation of the mounting seat 31 to the material arm 32. In one embodiment, the transmission part 12 and the matching part 33 are arranged in the form of a sun wheel ring and a planetary wheel. In another embodiment, the transmission part 12 and the matching part 33 are arranged in the form of a gear set and a connecting rod.

[0025] In one embodiment, see Figure 6 and Figure 7 The transmission part 12 includes a transmission gear 121, which is installed on the box body 11; the matching part 33 includes a matching gear 331, which is meshed with the transmission gear 121, and a plurality of matching gears 331 are arranged in sequence along the circumference of the transmission gear 121.

[0026] In this embodiment, when the mounting base 31 rotates relative to the box body 11, each material arm 32 rotates with the box body 11, so that the matching gear 331 rotates synchronously under the action of the transmission gear 121, and then the material arm 32 rotates around its own axis to realize the self-rotation of the workpiece, and the structure is simple and reliable. It should be noted that in this solution, each material arm 32 is provided with a hook 35 to facilitate the installation of the workpiece.

[0027] In one embodiment, the mounting seat 31 has a mounting cavity 31a, and the mounting cavity 31a has an avoidance opening and a mounting opening, the avoidance opening and the mounting opening are located on two opposite sides of the mounting seat 31, and there are multiple mounting openings; the transmission part 12 also includes a mounting shaft 122, one end of the mounting shaft 122 is connected to the inner wall of the box body 11, and the other end extends into the mounting cavity 31a from the avoidance opening, and the transmission gear 121 is arranged at one end of the mounting shaft 122 extending into the mounting cavity 31a; one end of the multiple material arms 32 respectively extends into the mounting cavity 31a from the multiple avoidance openings, and the matching gear 331 is arranged at one end of the material arm 32 located in the mounting cavity 31a.

[0028] In this embodiment, the transmission gear 121 and the matching gear 331 are integrated in the mounting cavity 31a of the mounting seat 31 to prevent foreign matter from interfering with the transmission gear 121 and the matching gear 331, ensure stable revolution and rotation of the material arm 32, and achieve uniform coating of the workpiece.

[0029] It should be noted that the arrangement form of the driving mechanism 4 is not limited, as long as it can stably drive the mounting seat 31 to rotate. In one embodiment, the driving mechanism 4 is arranged in the form of a driving motor 411, and the output shaft of the driving motor 411 is connected to the mounting seat 31 to directly drive the mounting seat 31 to rotate. In another embodiment, the driving mechanism 4 is arranged in the form of a motor, a pulley and a belt to drive the mounting seat 31 to rotate.

[0030] In one embodiment, see Figure 4 , Figure 5 and Figure 8 The feeding mechanism 3 also includes a driven gear 34, which is mounted on the mounting seat 31; the driving mechanism 4 includes a driving part 41 and a driving gear 42, the driving part 41 is mounted on the box body 11 and is drivingly connected to the driving gear 42, and the driving gear 42 is meshed with the driven gear 34.

[0031] In this embodiment, when the driving part 41 drives the driving gear 42 to rotate, the driven gear 34 rotates synchronously, thereby driving the mounting seat 31 to rotate relative to the box body 11, and the structure is stable and reliable.

[0032] In one embodiment, the material placing mechanism 3 is provided with two groups, and the driven gears 34 of the two groups are both meshed with the driving gear 42 .

[0033] In this embodiment, two sets of material placement mechanisms 3 are provided, and two sets of driven gears 34 are driven to rotate simultaneously through a driving gear 42. On the one hand, more workpieces can be coated in the same batch to improve the coating efficiency, and on the other hand, the transmission integration of the device is improved to save costs.

[0034] In one embodiment, each group of feeding mechanisms 3 is provided with a plurality of feeding mechanisms 3, and the plurality of feeding mechanisms 3 in the same group are arranged in sequence at intervals; a plurality of driving gears 42 are provided, and the plurality of driving gears 42 are arranged in intervals along the arrangement direction of the plurality of feeding mechanisms 3 in the same group, and are respectively engaged with two adjacent driven gears 34; the driving mechanism 4 also includes a driving shaft 43 and a plurality of connecting parts 44, the driving shaft 43 is rotatably installed in the box body 11, and extends along the arrangement direction of the plurality of feeding mechanisms 3 in the same group, the plurality of connecting parts 44 are provided on the driving shaft 43, and are arranged in sequence along the axial direction of the driving shaft 43, and are respectively connected to the plurality of driving gears 42 for driving and converting the rotation of the driving shaft 43 into the rotation of the driving gear 42; the driving part 41 is drivingly connected to the driving shaft 43, and is used to drive the driving shaft 43 to rotate.

[0035] In this embodiment, multiple material placement mechanisms 3 are provided in the same group, and one driving shaft 43 can simultaneously drive two groups of multiple mounting seats 31, thereby enabling two groups of multiple material arms 32 to realize revolution and rotation, further improving the coating efficiency and reducing the driving cost.

[0036] It should be noted that the connection part 44 is not limited in its configuration, as long as it can transmit the rotation of the drive shaft 43 to the driving gear 42. In one embodiment, the connection part 44 is configured in the form of a pulley and a transmission belt. In another embodiment, the connection part 44 is configured in the form of a connecting rod, or in other forms.

[0037] In one embodiment, the connecting portion 44 includes a rotating shaft 441, a driven bevel gear 442 and a driving bevel gear 443. The rotating shaft 441 is rotatably installed in the housing 11. The driven bevel gear 442 and the driving gear 42 are installed on the rotating shaft 441 and arranged in sequence along the axial direction of the rotating shaft 441. The driving bevel gear 443 is installed on the driving shaft 43 and meshes with the driven bevel gear 442.

[0038] In this embodiment, the rotation of the driving shaft 43 is transmitted to the rotating shaft 441 through the cooperation of the driving bevel gear 443 and the driven bevel gear 442, and then the driving gear 42 is synchronously driven to rotate via the rotating shaft 441, so that the driving structure is relatively compact.

[0039] In one embodiment, the steam mechanism 2 includes a screw 21, a movable nut seat 22 and a nozzle 23. The screw 21 is disposed in the housing 11 and extends along the axial direction of the drive shaft 43. The movable nut seat 22 is sleeved on the screw 21 and moves along its axial direction when the screw 21 rotates. The nozzle 23 is disposed on the movable nut seat 22 for inputting coating vapor; the driving part 41 includes a driving motor 411, a transmission belt 412 and two pulleys 413. The driving motor 411 is installed on the housing 11 and connected to the screw 21. The two pulleys 413 are respectively disposed on the screw 21 and the drive shaft 43, and the transmission belt 412 is sleeved on the two pulleys 413.

[0040] In this embodiment, when the driving motor 411 is working, it can synchronously drive the nozzle 23 and the driving shaft 43 to move, thereby realizing the linkage between the steam delivery and the rotation of the workpiece, and further improving the uniformity of the coating. At the same time, the rotation of the nozzle 23 and the workpiece is realized by a driving motor 411, which saves costs. It should be noted that in one embodiment, the driving motor 411 can realize forward and reverse rotation to realize the nozzle 23 to move back and forth along the axial direction of the screw 21. In this embodiment, the screw 21 adopts a reciprocating screw 21, which can make the movable nut seat 22 move back and forth without changing the rotation direction of the screw 21.

[0041] In one embodiment, the steam mechanism 2 further includes a steam furnace 24 , a connecting pipe 25 , and a flexible pipe 26 . The steam furnace 24 , the connecting pipe 25 , the flexible pipe 26 , and the nozzle 23 are connected in sequence.

[0042] In this embodiment, when the nozzle 23 moves along the axial direction of the lead screw 21, it can drive the flexible tube 26 to move, ensuring normal spraying of the coating vapor. In one embodiment, the flexible tube 26 is configured in the form of a bellows. In addition, in this solution, the steam furnace 24 is disposed outside the box 11.

[0043] In one embodiment, the movable nut seat 22 is provided with a guide channel along the extension direction of the screw 21, and the coating box 1 also includes a guide arm 13, which is arranged in the box body 11, extends along the axial direction of the screw 21, and passes through the guide channel.

[0044] In this embodiment, the movable nut seat 22 is sleeved on the guide arm 13 to ensure that the movable thread can stably move along the axial direction of the lead screw 21, avoid the nozzle 23 from deviating during the movement, and ensure the stability of the coating vapor delivery.

[0045] In addition, in one embodiment, the steam mechanism 2 further includes two gas delivery pipes 231, and the movable nut seat 22 is provided with extension arms 221 corresponding to the two groups of mounting seats 31, and the two gas delivery pipes 231 are respectively installed on the two extension arms 221 and extend toward the two groups of mounting seats 31. The two gas delivery pipes 231 are respectively connected to the flexible pipe 26, and at least one nozzle 23 is provided at the end close to the mounting seat 31. Among them, the guide channel is provided on the extension arm 221, and the guide arm 13 is provided with two groups corresponding to the extension arm 221.

[0046] In one embodiment, see Fig. 9 The steam mechanism 2 also includes a filter box 27, a filter screen 28 and an air duct 29. The filter box 27 is arranged outside the box body 11 and has an air inlet cavity and a cooling cavity. The air inlet cavity is connected to the box body 11. The filter screen 28 is arranged in the air inlet cavity. The cooling cavity contains coolant, and an exhaust port 27a is provided above the coolant. One end of the air duct 29 is connected to the air inlet cavity and is located downstream of the filter screen 28, and the other end extends into the coolant.

[0047] In this embodiment, a filter box 27 is provided outside the box body 11, so that after the workpiece is completed, the coating vapor in the box body 11 is transported to the air inlet cavity of the filter box 27, and then filtered through the filter screen 28 and transported to the coolant for cooling, and finally the gas at the cooling port is discharged from the exhaust port 27a, which is safe and convenient.

[0048] It should be noted that in this solution, a solenoid valve 272 is provided on the exhaust pipe 271 between the air intake cavity and the box body 11 to ensure that the exhaust is performed after the coating is completed. In addition, the air intake cavity in the filter box 27 is located above the cooling cavity, and a guide bucket 273 is provided between the two. The guide bucket 273 is gradually reduced toward the cooling cavity and has an opening at the bottom. A draft fan 274 is provided at the bottom opening of the guide bucket 273 to improve the exhaust efficiency.

[0049] In this solution, the bottom output end of the induced draft fan 274 is connected to an induced draft pipe 29, and the induced draft pipe 29 extends into the coolant. The coating device also includes a PLC controller (programmable logic controller), and the PLC controller is electrically connected to each electrical component.

[0050] In order to better understand the present invention, the following Figures 1 to 9 The technical solution of the present invention is described in detail: The working process of the coating device in this scheme is as follows: When in use, an external power source is connected, the box 11 is placed on a flat surface, and the plated object is placed on the hook 35 of the material arm 32, and then the box door is closed. After the box door is closed, the vacuum pump 14 is started to evacuate the box 11. Then, the metal plating liquid is injected into the steam furnace 24 and started, which can convert the plating liquid into steam, and then introduced into the flexible pipe 26 along the connecting pipe 25, and finally sent toward the plated object by the nozzle 23 of the gas delivery pipe 231.

[0051] At the same time, the lead screw 21 is driven to rotate by the driving motor 411. Since the movable nut seat 22 is limited and guided by the guide arm 13 during the movement, the air pipe 231 on the movable nut seat 22 can move horizontally stably, and then the movable nut seat 22 drives the air pipe 231 to move horizontally stably. Since the lead screw 21 adopts a reciprocating lead screw, the movable nut seat 22 can achieve horizontal reciprocating movement without changing the rotation direction of the lead screw 21.

[0052] And under the cooperative transmission of the transmission belt 412 and the two pulleys 413, the lead screw 21 and the driving shaft 43 rotate simultaneously. Then, the driving shaft 43 is used to drive the active bevel gear 443 to rotate, and the active bevel gear 443 meshes with the driven bevel gear 442, so that the rotating shaft 441 drives the active gear 42 to rotate, and the active gear 42 meshes with the driven gears 34 on both sides of the transmission, thereby driving the mounting seat 31 to rotate, so that the plated parts revolve around the axial direction of the mounting seat 31. During the rotation of the mounting seat 31, the transmission gear 121 is meshed and connected with the matching gear 331, so that the plated parts rotate around the axis of the material arm 32, so that the relative positions of each plated part and the nozzle 23 can be adjusted, ensuring a uniform and comprehensive coating effect, reducing power equipment, and reducing costs.

[0053] After the coating is completed, the solenoid valve 272 on the exhaust pipe 271 is opened, and the draft fan 274 is turned on at the same time, so that the gas in the box can be introduced into the filter box 27 along the exhaust pipe 271, and the introduced gas is filtered and impurities are removed by the filter screen 28. The filtered gas is introduced into the coolant through the air duct 29, and the gas temperature is reduced and then discharged from the exhaust port 27a, which is safe and convenient.

[0054] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A coating device, characterized in that: include: The coating box comprises a box body and a transmission part, wherein the transmission part is arranged in the box body; A material placing mechanism, comprising a mounting seat, a plurality of material arms and a plurality of matching parts, wherein the mounting seat is rotatably mounted in the box body, a plurality of material arms are installed at intervals on the mounting seat, each of the material arms can rotate around its own axis, a plurality of matching parts are respectively arranged on the plurality of material arms, and are all transmission-connected with the transmission part, and synchronously drive the material arms to rotate when the mounting seat rotates; and The driving mechanism is arranged on the box body and is drivingly connected to the mounting seat, and is used for driving the mounting seat to rotate.

2. The coating device according to claim 1, characterized in that: The transmission part includes a transmission gear, and the transmission gear is installed on the box body; The mating portion includes a mating gear, the mating gear is meshed with the transmission gear, and a plurality of the mating gears are sequentially arranged along the circumference of the transmission gear.

3. The coating device according to claim 2, characterized in that: The mounting seat has a mounting cavity, the mounting cavity has an avoidance opening and a mounting opening, the avoidance opening and the mounting opening are located on two opposite sides of the mounting seat, and a plurality of mounting openings are provided; The transmission part also includes a mounting shaft, one end of which is connected to the inner wall of the box body, and the other end of which extends from the avoidance opening into the mounting cavity, and the transmission gear is arranged at the end of the mounting shaft extending into the mounting cavity; One end of the plurality of material arms extends into the installation cavity from the plurality of avoidance openings respectively, and the matching gear is arranged at one end of the material arm located in the installation cavity.

4. The coating device according to claim 1, characterized in that: The material placing mechanism further comprises a driven gear, and the driven gear is mounted on the mounting seat; The driving mechanism includes a driving part and a driving gear. The driving part is installed on the box body and is drivingly connected to the driving gear. The driving gear is meshed with the driven gear.

5. The coating device according to claim 4, characterized in that: The material placing mechanism is provided with two groups, and the driven gears of the two groups are meshed with the driving gear.

6. The coating device according to claim 5, characterized in that: Each group of the material placing mechanisms is provided with a plurality of materials, and the plurality of material placing mechanisms in the same group are arranged in sequence and at intervals; There are a plurality of driving gears, and the plurality of driving gears are arranged at intervals along the arrangement direction of the plurality of material placing mechanisms in the same group, and are respectively meshed with two adjacent driven gears; The driving mechanism further includes a driving shaft and a plurality of connecting parts. The driving shaft is rotatably mounted in the box and extends along the arrangement direction of the plurality of material placing mechanisms in the same group. The plurality of connecting parts are arranged on the driving shaft and are sequentially arranged along the axial direction of the driving shaft and are respectively connected to a plurality of driving gears for converting the rotation of the driving shaft into the rotation of the driving gears. The driving portion is drivingly connected to the driving shaft and is used to drive the driving shaft to rotate.

7. The coating device according to claim 6, characterized in that: The connecting portion includes a rotating shaft, a driven bevel gear and a driving bevel gear. The rotating shaft is rotatably installed in the box body. The driven bevel gear and the driving gear are installed on the rotating shaft and arranged in sequence along the axial direction of the rotating shaft. The driving bevel gear is installed on the driving shaft and meshes with the driven bevel gear.

8. The coating device according to claim 6, characterized in that: The coating device further comprises a lead screw, a movable nut seat and a nozzle, wherein the lead screw is arranged in the box body and extends along the axial direction of the driving shaft, the movable nut seat is sleeved on the lead screw and moves along the axial direction when the lead screw rotates, and the nozzle is arranged on the movable nut seat and is used to input coating vapor; The driving unit includes a driving motor, a transmission belt and two pulleys. The driving motor is installed on the box body and connected to the lead screw. The two pulleys are respectively arranged on the lead screw and the driving shaft, and the transmission belt is sleeved on the two pulleys.

9. The coating device according to claim 8, characterized in that: The coating device further comprises a steam furnace, a connecting pipe and a flexible pipe, wherein the steam furnace, the connecting pipe, the flexible pipe and the nozzle are connected in sequence; and / or, The movable nut seat is provided with a guide channel along the extension direction of the lead screw. The coating box also includes a guide arm, which is arranged in the box body, extends along the axial direction of the lead screw, and passes through the guide channel.

10. The coating device according to claim 1, characterized in that: The coating device also includes a filter box, a filter screen and an air duct. The filter box is arranged outside the box body and has an air inlet cavity and a cooling cavity. The air inlet cavity is connected to the box body. The filter screen is arranged in the air inlet cavity. The cooling cavity contains coolant and an exhaust port is provided above the coolant. One end of the air duct is connected to the air inlet cavity and is located downstream of the filter screen, and the other end extends into the coolant.

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