Coating machine

Abstract

The invention provides a coating machine. The coating machine comprises a supporting frame, a barrel body, a bottom barrel, an air inlet pipe and a discharging pipe, the barrel body is connected with the supporting frame, the bottom barrel is communicated with the bottom end of the barrel body, and the air inlet pipe and the discharging pipe are both communicated with the bottom barrel; a ventilation net plate is arranged at the bottom end of the barrel body, a rotating shaft rod is connected to the ventilation net plate, the ventilation net plate and the barrel body are arranged in a rotating mode through the rotating shaft rod, an overturning assembly is arranged on the barrel body, and the overturning assembly drives the ventilation net plate to rotate through the rotating shaft rod. The ventilation net plate is inclined, products fall into the bottom cylinder along the ventilation net plate, and the discharging pipe is used for discharging the products. Product discharging can be facilitated, the risk that products are polluted is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of coating, and in particular to a coating machine. Background Technology

[0002] A coating machine is an electromechanical integrated device capable of coating tablets, pills, and candies with organic films, water-soluble films, sustained-release coatings, and controlled-release coatings. Coating machines are suitable for the pharmaceutical, chemical, and food industries. By forming a uniform coating on the surface of tablets and pills, coating machines improve the appearance, stability, and taste of products, or achieve special functions such as sustained release.

[0003] In related technologies, a coating machine includes a support frame, a cylinder, and a bottom cylinder. The cylinder comprises a top cylinder, a drying chamber, and a material cylinder connected sequentially from top to bottom. A dust collector bag is installed inside the top cylinder, a nozzle inlet pipe is installed inside the drying chamber, and a feed pipe is installed inside the material cylinder. The bottom end of the material cylinder is fixedly connected to the bottom cylinder, and a ventilation screen is installed at the bottom end of the material cylinder. The material enters the material cylinder through the feed pipe and sits on the ventilation screen. Hot air is introduced from the bottom cylinder towards the bottom end of the material cylinder, blowing the material through the ventilation screen into the drying chamber. The nozzle inlet pipe sprays coating agent into the drying chamber, thus forming a coating on the surface of the material. Subsequently, the material falls back onto the ventilation screen and is blown up again by hot air, continuously forming a coating on the material surface.

[0004] For coating machines in related technologies, after the material is coated to form a product, the bottom cylinder and ventilation screen need to be disassembled before the product can be unloaded, which can easily increase the risk of product contamination. Furthermore, the disassembly and installation of the bottom cylinder and ventilation screen affect production rhythm and efficiency. Summary of the Invention

[0005] To facilitate product unloading, reduce the risk of product contamination, and improve production efficiency, this application provides a coating machine.

[0006] This application provides a coating machine, which adopts the following technical solution: A coating machine includes a support frame, a cylinder, a bottom cylinder, an air inlet pipe, and a discharge pipe; the cylinder is connected to the support frame, the bottom cylinder is connected to the bottom end of the cylinder, and both the air inlet pipe and the discharge pipe are connected to the bottom cylinder; A ventilation mesh plate is provided at the bottom of the cylinder, and the ventilation mesh plate is connected to a rotating shaft. The ventilation mesh plate is rotatably set with the cylinder via the rotating shaft. A flipping component is provided on the cylinder. The flipping component drives the ventilation mesh plate to rotate via the rotating shaft, causing the ventilation mesh plate to tilt and the product to fall into the bottom cylinder along the ventilation mesh plate. The discharge pipe is used to discharge the product.

[0007] By adopting the above technical solution, hot air blows the material up, and after the material is coated to form a product inside the cylinder, the rotation drive source drives the ventilation screen to rotate, causing the ventilation screen to tilt. The product falls along the tilted ventilation screen into the bottom cylinder, making it easy to remove the product from the discharge pipe. This application does not require disassembling the bottom cylinder and ventilation screen during product unloading, reducing the risk of product contamination and improving production speed and efficiency.

[0008] Optionally, the cylinder is provided with a rotating mechanism and a coupling assembly, the ventilation screen is connected to the rotating mechanism, and the rotating mechanism causes the ventilation screen to rotate around its own axis; the flipping assembly includes a rotation drive source, the rotation drive source is connected to the coupling assembly, and the coupling assembly is used to connect or disconnect the output end of the rotation drive source from the rotating shaft.

[0009] By adopting the above technical solution, the rotating mechanism causes the ventilation mesh plate to rotate around its own axis, allowing the material to be shot-rolled on the ventilation mesh plate, resulting in a more rounded and smooth coating. The coupling assembly allows the output end of the rotation drive source to be connected or disconnected from the rotating shaft, enabling the ventilation mesh plate to rotate around its own axis or around the rotating shaft, facilitating shot-rolling operations and product unloading operations.

[0010] Optionally, the rotating mechanism includes a support ring and a rotating assembly. The support ring is rotatably connected to the cylinder, and the rotating shaft passes through the support ring. The ventilation mesh plate is rotatably connected to the support ring through the rotating shaft. The rotating assembly is disposed on the cylinder and is used to drive the support ring to rotate.

[0011] By adopting the above technical solution, the support ring is rotatably connected to the cylinder, the rotating shaft passes through the support ring, and the ventilation mesh plate is rotatably connected to the support ring through the rotating shaft. The rotating component drives the support ring to rotate, which in turn drives the ventilation mesh plate to rotate, enabling the material to be rubbed on the ventilation mesh plate, which is beneficial for forming a more round and smooth coating.

[0012] Optionally, the rotating assembly includes a gear ring, a gear, and a rotation drive source. The gear ring is coaxially connected to the support ring, the gear meshes with the gear ring, and the rotation drive source is used to drive the gear to rotate.

[0013] By adopting the above technical solution, the rotation drive source drives the gear to rotate, the gear drives the gear ring to rotate, the gear ring drives the support ring to rotate, and in turn drives the ventilation mesh plate to rotate, so as to realize the shot rolling of materials on the ventilation mesh plate.

[0014] Optionally, the coupling assembly includes a movable drive source and a coupling rod; the coupling rod is connected to the output end of the rotary drive source, the rotary drive source is connected to the movable drive source, and the movable drive source drives the rotary drive source to move, so that the coupling rod engages or disengages from the rotating shaft.

[0015] By adopting the above technical solution, the mobile drive source drives the rotation drive source to move, so that the coupling rod and the rotating shaft are engaged or disengaged, realizing the rotation of the ventilation mesh plate around its own axis or around the rotating shaft. This is beneficial for the material to be rolled into pellets on the ventilation mesh plate, and after the product is formed, it is easy to control the rotation of the ventilation mesh plate so that the product falls into the bottom cylinder and is convenient to be discharged from the discharge pipe.

[0016] Optionally, the rotating shaft includes a first rotating shaft and a second rotating shaft, the second rotating shaft being connected to the ventilation mesh plate and rotatably connected to the support ring; The first rotating shaft includes a rotating round tube, a snap-fit ​​square tube, and an elastic element; the rotating round tube is connected to the ventilation mesh plate, the snap-fit ​​square tube is slidably inserted into the rotating round tube, and the elastic element is connected to the snap-fit ​​square tube and the rotating round tube respectively; The support ring has a rotating hole and a snap-fit ​​square hole. The rotating round tube is rotatably disposed in the rotating hole, and the snap-fit ​​square tube is snapped into the snap-fit ​​square hole. The coupling rod is used to snap-fit ​​with the snap-fit ​​square tube. The moving drive source drives the rotating drive source to move, so that the coupling rod drives the snap-fit ​​square tube to move out or snap into the snap-fit ​​square hole.

[0017] By adopting the above technical solution, when the coupling rod moves out of the snap-fit ​​square tube, the elastic element pushes the snap-fit ​​square tube into the snap-fit ​​square hole, thus preventing the ventilation mesh plate from rotating around the rotating shaft, improving the positional stability of the ventilation mesh plate, and facilitating the formation of coating on the material above the ventilation mesh plate. When it is necessary to unload the product, the coupling rod is inserted into the snap-fit ​​square tube and pushes the snap-fit ​​square tube out of the snap-fit ​​square hole and into the rotating round tube. At this time, the ventilation mesh plate can rotate around the rotating shaft. Subsequently, the rotation drive source drives the first rotating shaft to rotate through the coupling rod, causing the ventilation mesh plate to tilt, thus facilitating the product to fall into the bottom cylinder along the tilted ventilation mesh plate.

[0018] Optionally, the cylinder is provided with a cleaning assembly, which includes a receiving tube, a supporting tube, and a brush strip. The receiving tube is connected to the cylinder, and the supporting tube passes through the receiving tube and is located on the bottom side of the ventilation mesh plate. The brush strip is connected to the supporting tube and is used to abut against the ventilation mesh plate.

[0019] By adopting the above technical solution, after the product is discharged, the support tube passes through the receiving tube and extends to the bottom side of the mesh plate. When the rotating mechanism drives the ventilation mesh plate to rotate around its own axis, the brush strips that abut against the ventilation mesh plate can brush the bottom side of the ventilation mesh plate and clean the ventilation mesh plate.

[0020] Optionally, the cleaning assembly further includes a telescopic drive source and a support plate. The support plate is connected to the cylinder, the telescopic drive source is connected to the support plate, and the support tube is connected to the telescopic drive source. The telescopic drive source drives the support tube to move, so that the support tube passes through the receiving tube and extends into the bottom side of the ventilation mesh plate.

[0021] By adopting the above technical solution, the telescopic drive source drives the support tube to move, so that the support tube passes through the receiving tube and extends into the bottom side of the ventilation mesh plate, which makes it easier and more effective to clean the bottom side of the ventilation mesh plate.

[0022] Optionally, an air nozzle is connected to the support pipe, the air nozzle is connected to the support pipe, the air nozzle faces the ventilation mesh plate, and a negative pressure source is connected to the support pipe.

[0023] By adopting the above technical solution, the support pipe of the external negative pressure source can use the air nozzle to suck up the dust from the bottom side of the ventilation mesh plate, thereby cleaning the ventilation mesh plate and reducing the impact of dust on the subsequent operation of the coating machine.

[0024] Optionally, a sealing plug is connected to the end of the support tube, the sealing plug being used to seal the receiving tube.

[0025] By adopting the above technical solution, after cleaning the ventilation mesh, removing the support pipe and sealing the receiving pipe with a plug can reduce the possibility of foreign objects entering the bottom cylinder through the receiving pipe, thus ensuring a clean internal environment for the coating machine. It also reduces the loss of hot air from the receiving pipe when hot air is introduced for coating.

[0026] In summary, this application includes at least one of the following beneficial effects: 1. The flipping component can drive the ventilation screen to rotate through the rotating shaft, causing the ventilation screen to tilt and the product on the ventilation screen to fall into the bottom cylinder. The product is then discharged through the discharge pipe connected to the bottom cylinder, which facilitates the product unloading operation, thereby reducing the risk of product contamination and improving production rhythm and efficiency. 2. The rotary drive source drives the gear to rotate, the gear drives the gear ring to rotate, the gear ring drives the support ring to rotate, and the support ring drives the ventilation mesh plate to rotate, thereby causing the material on the ventilation mesh plate to be granulated, which is conducive to the smooth progress of the material coating process; 3. The support ring and the support sealing cover are rotatably connected. The ventilation mesh plate is rotatably connected to the support ring through a rotating shaft. The rotating mechanism allows the ventilation mesh plate to rotate around its own axis. The telescopic drive source drives the support tube to move, so that the support tube passes through the receiving tube and extends to the bottom side of the ventilation mesh plate, so that the brush strip abuts against the ventilation mesh plate. When the ventilation mesh plate rotates around its own axis, the brush strip brushes the bottom side of the ventilation mesh plate. At the same time, the support tube connected to the external negative pressure source sucks away the dust generated by brushing, thereby cleaning the ventilation mesh plate. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the coating machine according to Embodiment 1 of this application; Figure 2 This is a cross-sectional structural diagram of the material cylinder, central cylinder, ventilation mesh plate, and flipping assembly in Embodiment 1 of this application; Figure 3 yes Figure 2 A magnified structural diagram of part A in the middle; Figure 4 This is a schematic diagram of the overall structure of the coating machine according to Embodiment 2 of this application; Figure 5 This is a cross-sectional structural diagram of the material cylinder, central cylinder, ventilation mesh plate, flipping assembly, rotating mechanism, rotating shaft and coupling assembly in Embodiment 2 of this application; Figure 6 yes Figure 5 A magnified structural diagram of part B in the middle section; Figure 7 This is a partial cross-sectional view of the first rotating shaft in Embodiment 2 of this application; Figure 8 yes Figure 5 A magnified structural diagram of section C; Figure 9 This is a schematic diagram of the overall structure of the coating machine according to Embodiment 3 of this application; Figure 10 This is a schematic diagram of the cleaning component in Embodiment 3 of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Support frame; 2. Cylinder; 21. Top cylinder; 22. Drying chamber; 23. Material cylinder; 231. Expansion shell; 232. Support sealing cover; 24. Central cylinder; 25. Feed pipe; 26. Nozzle inlet pipe; 3. Bottom cylinder; 4. Air inlet pipe; 5. Discharge pipe; 6. Ventilation mesh plate; 7. Rotating shaft; 71. First rotating shaft; 711. Rotating round tube; 712. Snap-fit ​​square tube; 713. Elastic element; 72. Second rotating shaft; 8. Tilting assembly; 81. Adjusting handle; 82. Locking knob; 83. 84. Rotation drive source; 95. Support pad; 16. Rotation mechanism; 97. Support ring; 98. Rotation hole; 99. Snap-fit ​​square hole; 90. Rotation assembly; 91. Rotation drive source; 92. Gear; 92. Gear ring; 100. Coupling assembly; 101. Bearing plate; 102. Motion drive source; 103. Coupling rod; 200. Cleaning assembly; 201. Receiving tube; 202. Support plate; 203. Telescopic drive source; 204. Support tube; 205. Air nozzle; 206. Brush strip; 207. Sealing plug. Detailed Implementation

[0029] The following combination Figures 1 to 10 This application will be described in further detail.

[0030] Example 1: Embodiment 1 of this application provides a coating machine.

[0031] refer to Figure 1 and Figure 2 A coating machine includes a support frame 1, a cylinder 2, a bottom cylinder 3, an air inlet pipe 4, a discharge pipe 5, and a ventilation mesh plate 6. The cylinder 2 includes a top cylinder 21, a drying chamber 22, and a material cylinder 23, which are fixedly connected and communicate with each other from top to bottom. The material cylinder 23 is fixedly connected to the support frame 1. A central cylinder 24 is fixedly connected inside the material cylinder 23, and the central cylinder 24 is vertically arranged.

[0032] refer to Figure 2 and Figure 3 The ventilation screen 6 is located inside the material cylinder 23. The ventilation screen 6 is horizontally set and is fixedly connected to a rotating shaft 7. The rotating shaft 7 is rotatably connected to the material cylinder 23, so that the ventilation screen 6 can rotate around the rotating shaft 7.

[0033] refer to Figure 1 and Figure 2The material cylinder 23 is connected to the feed pipe 25, through which the material enters the material cylinder 23 and sits on the ventilation screen plate 6. The bottom cylinder 3 is fixedly connected to the bottom end of the material cylinder 23, and the air inlet pipe 4 is connected to the bottom cylinder 3. The nozzle inlet pipe 26 is connected to the drying chamber 22 and can spray coating agent. The ventilation screen plate 6 has multiple ventilation holes, through which hot air is introduced into the air inlet pipe 4. The hot air blows the material on the ventilation screen plate 6, and the material passes through the central cylinder 24 and enters the drying chamber 22. The nozzle inlet pipe 26 sprays coating agent onto the material, and after the material adheres to the coating agent, it falls back onto the ventilation screen plate 6.

[0034] refer to Figure 2 and Figure 3 The material cylinder 23 is equipped with a flipping assembly 8, which includes an adjusting handle 81, a locking knob 82, and a support pad 84. The support pad 84 is fixedly connected to the outer wall of the material cylinder 23. The rotating shaft 7 passes through the support pad 84 and can rotate relative to the support pad 84. The end of the rotating shaft 7 that protrudes from the support pad 84 is a rectangular block. The end of the adjusting handle 81 has a square hole. The end of the rotating shaft 7 that protrudes from the support pad 84 is inserted into the square hole of the adjusting handle 81. Rotating the adjusting handle 81 can drive the rotating shaft 7 to rotate. The rotating shaft 7 drives the ventilation mesh plate 6 to rotate around the rotating shaft 7 to an inclined state. The coated product falls into the bottom cylinder 3 along the inclined ventilation mesh plate 6. The adjusting handle 81 can move along the axial direction of the rotating shaft 7. The locking knob 82 is threadedly connected to the end of the rotating shaft 7. When the locking knob 82 is turned, the locking knob 82 presses the end of the adjusting handle 81 against the support pad 84, thereby locking the position of the adjusting handle 81 and improving the positional stability of the ventilation mesh plate 6.

[0035] refer to Figure 1 The discharge pipe 5 is connected to the bottom end of the bottom cylinder 3. The material falling into the bottom cylinder 3 enters the discharge pipe 5. The discharge pipe 5 is connected to a pump, which can extract the product from the discharge pipe 5.

[0036] The implementation principle of a coating machine according to Embodiment 1 of this application is as follows: Material enters the material cylinder 23 from the feed pipe 25 and is located on the ventilation screen plate 6. Then, the discharge pipe 5 is closed, and hot air is introduced into the air inlet pipe 4. The hot air blows the material through the ventilation screen plate 6, and the material passes through the central cylinder 24 and enters the drying chamber 22. The nozzle inlet pipe 26 sprays coating agent onto the material, and then the material falls back onto the ventilation screen plate 6. The above process is repeated, so that the material is gradually coated and forms a product. After the product is formed, the hot air is stopped, the locking knob 82 is loosened, and then the adjusting handle 81 is turned. The adjusting handle 81 drives the ventilation screen plate 6 to tilt to an inclined state through the rotating shaft 7. The product falls into the material cylinder 23 along the inclined ventilation screen plate 6, so that the product can be easily pulled out from the discharge pipe 5.

[0037] Example 2: Embodiment 2 of this application provides a coating machine. The difference between Embodiment 2 and Embodiment 1 is that: refer to Figure 4 and Figure 5 The material cylinder 23 includes an expansion shell 231 and a support sealing cover 232. The drying chamber 22, the expansion shell 231, the support sealing cover 232 and the bottom cylinder 3 are connected in sequence.

[0038] refer to Figure 5 and Figure 6 A rotating mechanism 9 is provided on the support sealing cover 232. The rotating mechanism 9 includes a support ring 91 and a rotating assembly 92. The support ring 91 is located inside the support sealing cover 232 and is rotatably connected to the support sealing cover 232. The ventilation mesh plate 6 is located inside the support ring 91 and is rotatably connected to the support ring 91 through a rotating shaft 7.

[0039] refer to Figure 5 and Figure 6 The rotating assembly 92 includes a rotating drive source 921, a gear 922, and a gear ring 923. The gear ring 923 is sleeved on the outside of the support ring 91 and is fixedly connected to the support ring 91. The rotating drive source 921 is specifically a motor. The body of the rotating drive source 921 is fixedly connected to the support sealing cover 232. The output end of the rotating drive source 921 passes through the support sealing cover 232. The gear 922 is fixedly connected to the output end of the rotating drive source 921 and meshes with the gear ring 923. When the rotating drive source 921 is started, it drives the support ring 91 to rotate through the gear 922 and the gear ring 923. The support ring 91 drives the ventilation mesh plate 6 to rotate around its own axis. By adjusting the airflow of hot air, the material with coating agent adhering to it stays on the ventilation mesh plate 6 for a period of time. The rotating mechanism 9 drives the ventilation mesh plate 6 to rotate around its own axis, which granulates the material, making the coating on the material surface more round and smooth.

[0040] refer to Figure 5 and Figure 6 The support sealing cover 232 is also provided with a coupling assembly 100, which includes a bearing plate 101, a moving drive source 102, and a coupling rod 103. The bearing plate 101 is fixedly connected to the support sealing cover 232. The moving drive source 102 is specifically an electric cylinder. The tilting assembly 8 includes a rotation drive source 83, which is specifically a motor. The body of the rotation drive source 83 is fixedly connected to the moving end of the moving drive source 102, and the output end of the rotation drive source 83 is fixedly connected to the coupling rod 103.

[0041] refer to Figure 6 and Figure 7The rotating shaft 7 includes a first rotating shaft 71 and a second rotating shaft 72. The first rotating shaft 71 includes a rotating circular tube 711, a snap-fit ​​square tube 712, and an elastic element 713. The rotating circular tube 711 is fixedly connected to the ventilation mesh plate 6. The support ring 91 has a rotating hole 911, which is a circular hole. The rotating circular tube 711 is rotatably connected in the rotating hole 911, so that the ventilation mesh plate 6 can rotate around the axis of the rotating circular tube 711.

[0042] refer to Figure 6 and Figure 7 The snap-fit ​​square tube 712 is a square rod, and the rotating round tube 711 has a square hole inside, into which the snap-fit ​​square tube 712 is inserted and fitted. The elastic element 713 is specifically a spring, which is fixedly connected to both the rotating round tube 711 and the snap-fit ​​square tube 712. The support ring 91 also has a snap-fit ​​square hole 912, which communicates with the rotating hole 911, into which the snap-fit ​​square tube 712 is inserted and fitted. When the snap-fit ​​square tube 712 is inserted into the snap-fit ​​square hole 912, it can lock the rotation of the ventilation mesh plate 6 around the axis of the rotating round tube 711. The coupling rod 103 is a square rod, and the snap-fit ​​square tube 712 has a square hole inside, into which the coupling rod 103 is inserted and fitted.

[0043] refer to Figure 6 and Figure 8 The second rotating shaft 72 is a cylindrical rod, which is fixedly connected to the ventilation mesh plate 6 and rotatably connected to the support ring 91. The rotating round tube 711 is coaxial with the second rotating shaft 72.

[0044] refer to Figure 5 and Figure 7 The movable drive source 102 drives the rotary drive source 83 to move, which in turn drives the coupling rod 103 to move, allowing the coupling rod 103 to be inserted into the snap-fit ​​square tube 712. The coupling rod 103 continues to move, pushing the snap-fit ​​square tube 712 out of the snap-fit ​​square hole 912 and into the rotating round tube 711. At this point, the snap-fit ​​square tube 712 releases its rotational lock on the ventilation mesh plate 6, allowing the ventilation mesh plate 6 to rotate freely around the rotating round tube 711 and the second rotating shaft 72. Then, the rotary drive source 83 is activated, driving the ventilation mesh plate 6 to rotate via the coupling rod 103, the snap-fit ​​square tube 712, and the rotating round tube 711, enabling the ventilation mesh plate 6 to flip to an inclined state.

[0045] refer to Figure 5 and Figure 7After the product falls into the bottom cylinder 3 along the inclined ventilation mesh plate 6, the rotation drive source 83 drives the ventilation mesh plate 6 back to a horizontal state. The moving drive source 102 drives the rotation drive source 83 away from the ventilation mesh plate 6, causing the coupling rod 103 to disengage from the snap-fit ​​square tube 712. The elastic element 713 pushes the snap-fit ​​square tube 712 to move axially along the rotating round tube 711, causing the snap-fit ​​square tube 712 to move into the snap-fit ​​square hole 912. At this time, the snap-fit ​​square tube 712 locks the rotation of the ventilation mesh plate 6, preventing the ventilation mesh plate 6 from flipping and improving the positional stability of the ventilation mesh plate 6. Since the coupling rod 103 is disconnected from the snap-fit ​​square tube 712, the rotating mechanism 9 can normally drive the ventilation mesh plate 6 to rotate around its own axis, thus enabling normal shot rubbing operation of the material.

[0046] Example 3: Embodiment 3 of this application provides a coating machine. The difference between Embodiment 3 and Embodiment 2 is that: refer to Figure 9 and Figure 10 The support sealing cover 232 is also equipped with a cleaning assembly 200, which includes a receiving tube 201, a support plate 202, a telescopic drive source 203, a support tube 204, an air nozzle 205, a brush strip 206, and a sealing plug 207. The receiving tube 201 is fixedly connected to and communicates with the support sealing cover 232, and the support tube 204 is located inside the receiving tube 201. The support plate 202 and the telescopic drive source 203 are both located outside the support sealing cover 232. The support plate 202 is fixedly connected to the support sealing cover 232. The telescopic drive source 203 is specifically an electric cylinder. The body of the telescopic drive source 203 is fixedly connected to the support plate 202, and the output end of the telescopic drive source 203 is fixedly connected to the support tube 204. The telescopic drive source 203 can drive the support tube 204 to extend from the receiving tube 201 to the bottom side of the ventilation mesh plate 6. Multiple air nozzles 205 are fixedly connected to and communicate with the support pipe 204, with the air nozzles 205 facing the ventilation mesh plate 6. The brush strip 206 is fixedly connected to the support pipe 204, with the air nozzles 205 located in the middle of the brush strip 206. The support pipe 204 is a rigid pipe, and the support pipe 204 is connected to the negative pressure air source through a flexible hose.

[0047] refer to Figure 9 and Figure 10After the material is coated to form a product, dust adheres to the top side of the ventilation mesh plate 6. The flipping component 8 tilts the ventilation mesh plate 6, causing the material to fall into the bottom cylinder 3 along the tilted ventilation mesh plate 6. Subsequently, the flipping component 8 flips the ventilation mesh plate 6, swapping the top and bottom sides of the ventilation mesh plate 6, so that the top side of the ventilation mesh plate 6 with dust adheres becomes the bottom side of the ventilation mesh plate 6. Then, the telescopic drive source 203 drives the support pipe 204 to extend to the bottom side of the ventilation mesh plate 6, and the brush strip 206 abuts against the bottom side of the ventilation mesh plate 6. The rotating mechanism 9 drives the ventilation mesh plate 6 to rotate around its own axis, so that the brush strip 206 brushes off the dust on the ventilation mesh plate 6. The support pipe 204 removes the dust brushed off by the brush strip 206 through the air nozzle 205.

[0048] refer to Figure 9 and Figure 10 The sealing plug 207 is fixedly connected to the end of the support pipe 204. After the bottom side of the ventilation mesh plate 6 is cleaned, the telescopic drive source 203 drives the support pipe 204 to move from the bottom side of the ventilation mesh plate 6 into the receiving pipe 201. The sealing plug 207 seals the receiving pipe 201, improving the sealing performance of the support sealing cover 232.

[0049] It is worth noting that in this embodiment, the brush strip 206 can brush away most of the dust adhering to the ventilation mesh plate 6. After cleaning the ventilation mesh plate 6, the telescopic drive source 203 drives the support tube 204 to move into the receiving tube 201, enabling the ventilation mesh plate 6 to work normally. Subsequently, the next batch of materials is fed to the top side of the ventilation mesh plate 6 for processing. After processing multiple batches of materials, the ventilation mesh plate 6 accumulates a lot of dust that is difficult for the brush strip 206 to brush away. At this time, the ventilation mesh plate 6 should be removed for cleaning or replaced with a new ventilation mesh plate 6.

[0050] The implementation principle of a coating machine according to Embodiment 3 of this application is as follows: After coating the material to form a product, the flipping component 8 drives the ventilation mesh plate 6 to flip at a certain angle, causing the ventilation mesh plate 6 to tilt, and the product falls into the bottom cylinder 3 along the tilted ventilation mesh plate 6. Subsequently, the flipping component 8 continues to flip the ventilation mesh plate 6 to a horizontal state, so that the top and bottom sides of the ventilation mesh plate 6 are swapped before and after the flip, so that the side of the ventilation mesh plate 6 with dust adhering to it flips to become the bottom side of the ventilation mesh plate 6. Then, the moving drive source 102 causes the coupling rod 103 to disconnect from the first rotating shaft rod 71, and the telescopic drive source 203 drives the support tube 204 to extend into the bottom side of the ventilation mesh plate 6. The rotating mechanism 9 drives the ventilation mesh plate 6 to rotate around its own axis, so that the ventilation mesh plate 6 and the brush strip 206 move relative to each other, thereby causing the brush strip 206 to brush off the dust adhering to the ventilation mesh plate 6, and the support tube 204 draws away the brushed-off dust through the air nozzle 205. After the ventilation mesh panel 6 is cleaned, the telescopic drive source 203 drives the support pipe 204 to move into the receiving pipe 201, so that the ventilation mesh panel 6 can work normally.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A coating machine, characterized in that, It includes a support frame (1), a cylinder (2), a bottom cylinder (3), an air inlet pipe (4), and a discharge pipe (5); the cylinder (2) is connected to the support frame (1), the bottom cylinder (3) is connected to the bottom end of the cylinder (2), and the air inlet pipe (4) and the discharge pipe (5) are both connected to the bottom cylinder (3); The bottom end of the cylinder (2) is provided with a ventilation mesh plate (6), the ventilation mesh plate (6) is connected to a rotating shaft (7), the ventilation mesh plate (6) is rotatably set with the cylinder (2) through the rotating shaft (7), the cylinder (2) is provided with a flipping component (8), the flipping component (8) drives the ventilation mesh plate (6) to rotate through the rotating shaft (7), so that the ventilation mesh plate (6) tilts and the product falls into the bottom cylinder (3) along the ventilation mesh plate (6), and the discharge pipe (5) is used to discharge the product.

2. A coating machine according to claim 1, characterized in that, The cylinder (2) is provided with a rotating mechanism (9) and a coupling assembly (100). The ventilation mesh plate (6) is connected to the rotating mechanism (9). The rotating mechanism (9) causes the ventilation mesh plate (6) to rotate around its own axis. The flipping assembly (8) includes a rotation drive source (83). The rotation drive source (83) is connected to the coupling assembly (100). The coupling assembly (100) is used to connect or disconnect the output end of the rotation drive source (83) from the rotating shaft (7).

3. A coating machine according to claim 2, characterized in that, The rotating mechanism (9) includes a support ring (91) and a rotating assembly (92). The support ring (91) is rotatably connected to the cylinder (2). The rotating shaft (7) passes through the support ring (91). The ventilation mesh plate (6) is rotatably connected to the support ring (91) through the rotating shaft (7). The rotating assembly (92) is disposed on the cylinder (2) and is used to drive the support ring (91) to rotate.

4. A coating machine according to claim 3, characterized in that, The rotating assembly (92) includes a gear ring (923), a gear (922) and a rotation drive source (83). The gear ring (923) is coaxially connected to the support ring (91), the gear (922) meshes with the gear ring (923), and the rotation drive source (83) is used to drive the gear (922) to rotate.

5. A coating machine according to claim 3, characterized in that, The coupling assembly (100) includes a movable drive source (102) and a coupling rod (103); the coupling rod (103) is connected to the output end of the rotation drive source (83), the rotation drive source (83) is connected to the movable drive source (102), and the movable drive source (102) drives the rotation drive source (83) to move, so that the coupling rod (103) engages or disengages from the rotating shaft (7).

6. A coating machine according to claim 5, characterized in that, The rotating shaft (7) includes a first rotating shaft (71) and a second rotating shaft (72). The second rotating shaft (72) is connected to the ventilation mesh plate (6) and is rotatably connected to the support ring (91). The first rotating shaft (71) includes a rotating round tube (711), a snap-fit ​​square tube (712), and an elastic element (713); the rotating round tube (711) is connected to the ventilation mesh plate (6), the snap-fit ​​square tube (712) is slidably inserted into the rotating round tube (711), and the elastic element (713) is connected to the snap-fit ​​square tube (712) and the rotating round tube (711) respectively; The support ring (91) has a rotating hole (911) and a snap-fit ​​square hole (912). The rotating round tube (711) is rotatably disposed in the rotating hole (911), and the snap-fit ​​square tube (712) is snapped into the snap-fit ​​square hole (912). The coupling rod (103) is used to snap into the snap-fit ​​square tube (712). The moving drive source (102) drives the rotating drive source (83) to move, so that the coupling rod (103) drives the snap-fit ​​square tube (712) to move out or snap into the snap-fit ​​square hole (912).

7. A coating machine according to claim 2, characterized in that, A cleaning assembly (200) is provided on the cylinder (2). The cleaning assembly (200) includes a receiving tube (201), a support tube (204), and a brush strip (206). The receiving tube (201) is connected to the cylinder (2). The support tube (204) passes through the receiving tube (201) and is located on the bottom side of the ventilation mesh plate (6). The brush strip (206) is connected to the support tube (204) and is used to abut against the ventilation mesh plate (6).

8. A coating machine according to claim 7, characterized in that, The cleaning assembly (200) also includes a telescopic drive source (203) and a support plate (202). The support plate (202) is connected to the cylinder (2). The telescopic drive source (203) is connected to the support plate (202). The support tube (204) is connected to the telescopic drive source (203). The telescopic drive source (203) drives the support tube (204) to move, so that the support tube (204) passes through the receiving tube (201) and extends into the bottom side of the ventilation mesh plate (6).

9. A coating machine according to claim 7, characterized in that, An air nozzle (205) is connected to the support pipe (204). The air nozzle (205) is connected to the support pipe (204). The air nozzle (205) faces the ventilation mesh plate (6). The support pipe (204) is connected to a negative pressure source.

10. A coating machine according to claim 7, characterized in that, The end of the support tube (204) is connected to a sealing plug (207), which is used to seal the receiving tube (201).

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