A coating device with humidity feedback and automatic dehumidification

Abstract

The present invention discloses a coating device with humidity feedback and automatic dehumidification, which relates to the technical field of pharmaceutical equipment, including an equipment box, wherein the left and right ends of the equipment box are respectively provided with an exhaust assembly and an air intake assembly, and a dehumidification mechanism and a coating mechanism are provided inside the equipment box; the dehumidification mechanism includes a drum rotatably arranged inside the equipment box, an annular dehumidification hole is opened at the right end of the drum, and an annular electric heating net is fixedly installed on the inner wall of the annular dehumidification hole, and the coating mechanism includes a rotating transverse tube rotatably arranged on the inner wall of the drum. The equipment of the present invention can effectively remove moisture in the coating process and maintain a dry environment inside the equipment through the built-in dehumidification mechanism, including the annular dehumidification hole and the electric heating net on the drum. The provision of the temperature and humidity sensor enables the equipment to monitor the internal humidity in real time, thereby adjusting the dehumidification intensity according to actual needs to ensure the stability of the coating quality.

Description

Technical Field

[0001] The invention relates to the technical field of pharmaceutical equipment, in particular to a coating device with humidity feedback and automatic dehumidification. Background Art

[0002] Drug coating is a crucial process step in the pharmaceutical industry. Coating not only improves a drug's appearance and taste, but also enhances its stability, controls its release rate, and masks any unpleasant odor. However, a key challenge often arises during drug coating: moisture control.

[0003] During the coating process, the surface of the drug particles easily absorbs moisture in the air, forming a thin water film. This water film not only affects the adhesion and uniformity of the coating material, but may also cause the coating layer to crack, fall off, and even cause the drug to deteriorate. Therefore, keeping the coating environment dry is crucial to ensuring the quality of the coating. Traditional coating equipment usually adopts passive dehumidification methods, such as the invention patent document with patent publication number CN116672262A, which uses desiccant or natural ventilation to reduce the humidity inside the equipment. However, these methods have obvious limitations. The desiccant needs to be replaced regularly, which not only increases the operating cost, but also the dehumidification effect is unstable. Natural ventilation is greatly affected by the humidity of the external environment and cannot effectively control the humidity level inside the equipment.

[0004] Furthermore, traditional coating equipment often lacks a humidity feedback mechanism during the coating process. Operators lack real-time visibility into humidity conditions within the equipment, making it difficult to adjust dehumidification strategies to suit the coating requirements of different drugs. This results in difficulty in consistently controlling coating quality and significant batch-to-batch variability.

[0005] In view of the above problems, it is necessary to develop a new type of coating equipment that can automatically monitor and adjust the humidity level inside the equipment to ensure that the coating process is carried out in a dry environment. Summary of the Invention

[0006] The object of the present invention is to provide a coating device with humidity feedback and automatic dehumidification to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions: a coating device with humidity feedback and automatic dehumidification, comprising an equipment box, an exhaust assembly and an air intake assembly being respectively provided at the left and right ends of the equipment box, and a dehumidification mechanism and a coating mechanism being provided inside the equipment box;

[0008] The dehumidification mechanism includes a drum rotatably arranged inside the equipment box, an annular dehumidification hole is opened at the right end of the drum, and an annular electric heating net is fixedly installed on the inner wall of the annular dehumidification hole;

[0009] The coating mechanism includes a rotating horizontal tube rotatably arranged on the inner wall of the drum, a plurality of trapezoidal stirring tubes are symmetrically arranged on the surface of the rotating horizontal tube, a plurality of nozzles are evenly distributed on the surface of the trapezoidal stirring tube, a linkage mechanism is arranged between the coating mechanism and the dehumidification mechanism, and the coating mechanism and the dehumidification mechanism are linked to each other through the linkage mechanism.

[0010] Preferably, the linkage mechanism includes a driving motor fixedly arranged on the bottom wall of the equipment box, the output end of the driving motor is fixedly connected to the driving shaft, the left end of the driving shaft is fixedly connected to the driving gear, the annular surface of the roller is fixedly connected to the driven gear ring, the position of the driven gear ring corresponds to the driving gear, and the driving gear is meshed with the driven gear ring, the inner wall of the equipment box is rotatably connected to the transmission shaft, the surface of the transmission shaft is fixedly connected to the first transmission gear and the second transmission gear, the surface of the transmission shaft is fixedly connected to the driven synchronous wheel, the surface of the driving shaft is fixedly provided with a driving synchronous wheel, and a transmission belt is installed between the driving synchronous wheel and the driven synchronous wheel.

[0011] Preferably, the right end of the rotating transverse tube extends to the outside of the drum, and a first linkage gear is fixedly provided on the surface of the rotating transverse tube, the position of the first linkage gear corresponds to the second transmission gear, and the first linkage gear is meshed with the second transmission gear.

[0012] Preferably, the air intake assembly includes an air intake hood fixedly mounted on the right end of the equipment box, the left end of the air intake hood extends to the interior of the equipment box, and a limit mounting ring is fixedly provided on the inner wall of the air intake hood, a linkage shaft is rotatably provided on the surface of the limit mounting ring, and the left end of the linkage shaft is fixedly connected to a second linkage gear, the position of the second linkage gear corresponds to the first transmission gear, and the second linkage gear is meshed with the first transmission gear.

[0013] Preferably, a plurality of air intake blades are fixedly provided on the surface of the linkage shaft, a dust removal screen is fixedly connected to the right side of the limit mounting ring, the position of the dust removal screen corresponds to the air intake blades, a fixed disk is fixed to the right end of the dust removal screen, a movable frame is rotatably connected at the center of the surface of the fixed disk, a guide fan blade is fixedly provided on the surface of the movable frame, two strip brushes are fixedly provided on the surface of the movable frame, the two strip brushes are symmetrically distributed on both sides of the dust removal screen, and the strip brushes overlap the surface of the dust removal screen.

[0014] Preferably, a liquid storage box is fixedly provided on the upper surface of the equipment box, and a delivery pump is fixedly installed on the right side of the liquid storage box. The input end of the delivery pump extends to the interior of the liquid storage box, and the output end of the delivery pump is fixedly connected to a delivery pipe. The end of the delivery pipe away from the delivery pump extends to the interior of the equipment box, and the output end of the delivery pipe is rotatably connected to the right end of the rotating cross pipe, and the output end of the delivery pipe extends to the interior of the rotating cross pipe.

[0015] Preferably, a stirring rod is rotatably provided on the inner wall of the liquid storage box, a plurality of stirring blades are fixedly provided on the surface of the stirring rod, and the left end of the stirring rod extends to the outside of the liquid storage box and is fixedly connected to a driven shaft, a first synchronous wheel is fixedly provided on the left end of the driven shaft, a limiting support tube is fixedly embedded on the left end of the roller, a second synchronous wheel is fixedly provided on the surface of the limiting support tube, and a synchronous belt is installed between the first synchronous wheel and the second synchronous wheel.

[0016] Preferably, a limiting circular plate is fixedly provided on the right end of the limiting support tube, the left end of the rotating horizontal tube is rotatably connected to the surface of the limiting circular plate, a plurality of moisture drainage holes are provided on the surface of the limiting support tube, and the exhaust assembly includes an exhaust hood fixedly installed on the left end of the equipment box, the left end of the limiting support tube extends to the interior of the exhaust hood, and the limiting support tube is rotatably connected to the left inner wall of the equipment box, and an exhaust pipe is fixedly provided on the top of the exhaust hood.

[0017] Preferably, a dustproof net is fixedly provided at the top opening of the exhaust pipe, an exhaust fan is fixedly provided on the inner wall of the exhaust cover, and the air outlet end of the exhaust fan corresponds to the air inlet end of the exhaust pipe.

[0018] Preferably, a plurality of temperature and humidity sensors are fixedly mounted on the inner top wall of the equipment box, and the plurality of temperature and humidity sensors are evenly distributed above the drum. A material inlet and outlet are provided on the surface of the drum, and an arc-shaped cover is rotatably provided on the outside of the material inlet and outlet.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. Automatic Dehumidification and Humidity Feedback: The machine's built-in dehumidification mechanism, including circular dehumidification holes on the drum and an electric heating grid, effectively removes moisture during the coating process, maintaining a dry environment inside the machine. Temperature and humidity sensors enable the machine to monitor internal humidity in real time, adjusting dehumidification intensity based on actual needs to ensure consistent coating quality.

[0021] 2. Linked Rotation Design: The coating and dehumidification mechanisms rotate in tandem via a linkage mechanism, simplifying the operation process and improving overall efficiency. This linkage design allows the drive motor to simultaneously drive both the coating and dehumidification mechanisms, reducing energy consumption and improving energy efficiency.

[0022] 3. Dust removal and air flow control in the air intake assembly: The dust removal screen and strip brush in the air intake assembly effectively remove dust and impurities from the air entering the equipment, ensuring a clean coating environment. The design of the air flow control blades ensures that the air entering the equipment is evenly distributed, which promotes a uniform coating process.

[0023] 4. High degree of automation: The equipment automatically transfers the coating liquid from the liquid reservoir to the rotating horizontal tube via a delivery pump. The nozzle evenly sprays the coating liquid onto the material, while the rolling motion simultaneously stirs the material for uniform coating, automating the coating process. The stirring rod and stirring blades ensure that the coating liquid in the liquid reservoir remains uniform, preventing sedimentation and stratification.

[0024] 5. Efficient exhaust from the exhaust assembly: The exhaust fan and exhaust pipe in the exhaust assembly can quickly expel moisture from the equipment, preventing moisture accumulation from affecting coating quality. The dust screen prevents external dust from entering the equipment, keeping the exhaust duct clean and unobstructed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front view structural schematic diagram of the present invention;

[0026] Figure 2 It is a side structural schematic diagram of the present invention;

[0027] Figure 3 This is a schematic diagram of the internal structure of the equipment box of the present invention;

[0028] Figure 4 It is a schematic diagram of a partial front cross-section structure of the equipment box of the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of the present invention from a first perspective;

[0030] Figure 6 This is a schematic diagram of the structure of the present invention from a second viewing angle;

[0031] Figure 7 for Figure 4 Schematic diagram of the enlarged structure at A in the middle;

[0032] Figure 8 for Figure 5 Schematic diagram of the enlarged structure at B in the middle;

[0033] Figure 9 for Figure 6 Schematic diagram of the enlarged structure at C in the middle;

[0034] Figure: 1. Equipment box; 2. Air intake assembly; 3. Exhaust assembly; 4. Dehumidification mechanism; 5. Coating mechanism; 6. Linkage mechanism; 7. Liquid storage box; 8. Delivery pump; 9. Delivery pipe; 10. Stirring rod; 11. Stirring blade; 12. Driven shaft; 13. First synchronous pulley; 14. Second synchronous pulley; 15. Timing belt; 16. Temperature and humidity sensor;

[0035] 201, air intake cover; 202, position limiting mounting ring; 203, linkage shaft; 204, air intake blades; 205, dust removal screen; 206, movable frame; 207, fan guide blades; 208, strip brush;

[0036] 301, exhaust hood; 302, exhaust pipe; 303, dust screen; 304, exhaust fan;

[0037] 401. Drum; 402. Annular dehumidification hole; 403. Electric heating network; 404. Position-limiting support tube; 405. Position-limiting circular plate; 406. Dehumidification hole; 407. Arc-shaped cover plate.

[0038] 501, rotating horizontal tube; 502, trapezoidal stirring tube; 503, nozzle;

[0039] 601, driving motor; 602, driving shaft; 603, driving gear; 604, driven gear ring; 605, transmission shaft; 606, first transmission gear; 607, second transmission gear; 608, driven synchronous pulley; 609, driving synchronous pulley; 610, transmission belt; 611, first linkage gear; 612, second linkage gear. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] See also Figures 1-9 The present invention provides a technical solution: a coating device with humidity feedback and automatic dehumidification. The device box 1 is the main body of the entire device, providing a closed working environment for the coating process. The material of the device box 1 is preferably stainless steel to ensure the equipment's corrosion resistance and easy cleaning.

[0042] See also Figure 3, by setting an exhaust component 3, the exhaust component 3 is set at the left end of the equipment box 1, which is used to discharge the moisture inside the equipment. The exhaust component 3 includes an exhaust hood 301 and an exhaust pipe 302. The exhaust hood 301 is fixedly installed at the left end of the equipment box 1, and its interior is connected to the interior of the equipment box 1. The exhaust pipe 302 is fixed on the top of the exhaust hood 301 and is used to guide the exhausted moisture to the outside of the equipment. In order to prevent external dust from entering the interior of the equipment, a dustproof net 303 is also fixedly set at the top opening of the exhaust pipe 302. In addition, an exhaust fan 304 is also fixedly set on the inner wall of the exhaust hood 301 to enhance the exhaust effect and ensure that the moisture inside the equipment can be quickly discharged.

[0043] See also Figure 4 , by setting up an air intake assembly 2, the air intake assembly 2 is set at the right end of the equipment box 1, and is used to introduce fresh air into the interior of the equipment. The air intake assembly 2 includes an air intake cover 201, a limit mounting ring 202, a linkage shaft 203, air intake blades 204, a dust removal screen 205, a movable frame 206, fan guide blades 207 and a strip brush 208. The air intake cover 201 is fixedly mounted on the right end of the equipment box 1, and its left end extends to the interior of the equipment box 1. The limit mounting ring 202 is fixedly set on the inner wall of the air intake cover 201, and is used to support and fix the linkage shaft 203. A number of air intake blades 204 are fixedly set on the surface of the linkage shaft 203, which are used to guide air into the interior of the equipment when the equipment is working. The dust removal screen 205 is fixedly connected to the right side of the limit mounting ring 202, and is used to filter dust and impurities in the air entering the equipment. The movable frame 206 is pivotally connected to a fixed plate at the right end of the dust screen 205. It is fixedly mounted with fan blades 207 and a strip brush 208. The design of the fan blades 207 ensures uniform distribution of air entering the machine, promoting a smooth coating process. The strip brushes 208 are symmetrically positioned on either side of the dust screen 205 and overlap the surface of the dust screen 205. They are used to remove dust and impurities from the dust screen 205 during operation, ensuring effective dust removal.

[0044] See also Figure 5 and Figure 6, by setting up a dehumidification mechanism 4, the dehumidification mechanism 4 is arranged inside the equipment box 1, and is used to remove moisture during the coating process. The dehumidification mechanism 4 includes a drum 401, an annular dehumidification hole 402, an electric heating net 403, a limiting support pipe 404, a limiting circular plate 405 and a dehumidification hole 406. The drum 401 is rotatably arranged inside the equipment box 1, and an annular dehumidification hole 402 is opened at its right end. An annular electric heating net 403 is fixedly installed on the inner wall of the annular dehumidification hole 402, which is used to heat and dry the moisture passing through the annular dehumidification hole 402. The limiting support pipe 404 is fixedly embedded in the left end of the drum 401, and a second synchronous wheel 14 and a plurality of dehumidification holes 406 are fixedly provided on its surface. The design of the dehumidification hole 406 allows the moisture inside the drum 401 to be discharged to the inside of the equipment box 1 through the dehumidification hole 406, and then discharged to the outside of the equipment through the exhaust component 3. The limiting circular plate 405 is fixedly disposed on the right end of the limiting support tube 404 to support and fix the rotating horizontal tube 501 .

[0045] See also Figure 5 and Figure 9 , by setting a coating mechanism 5, the coating mechanism 5 is set inside the dehumidification mechanism 4 and is used to coat the material. The coating mechanism 5 includes a rotating horizontal tube 501, a trapezoidal stirring tube 502 and a nozzle 503. The rotating horizontal tube 501 is rotatably set on the inner wall of the drum 401, and its right end extends to the outside of the drum 401 and is rotatably connected to the output end of the conveying pipe 9. The left end of the rotating horizontal tube 501 is rotatably connected to the surface of the limiting circular plate 405 to ensure its stable rotation. The trapezoidal stirring tube 502 is symmetrically set on the surface of the rotating horizontal tube 501, and is used to drive the material to turn over during the rotation process to achieve uniform coating. The nozzles 503 are evenly distributed on the surface of the trapezoidal stirring tube 502, and are used to evenly spray the coating liquid on the material.

[0046] See also Figure 1The linkage mechanism 6 is provided inside the equipment box 1 to achieve the coordinated rotation between the coating mechanism 5 and the dehumidification mechanism 4. The linkage mechanism 6 includes a drive motor 601, a drive shaft 602, a drive gear 603, a driven ring gear 604, a transmission shaft 605, a first transmission gear 606, a second transmission gear 607, a driven synchronous pulley 608, a drive synchronous pulley 609, a transmission belt 610, a first linkage gear 611, and a second linkage gear 612. The drive motor 601 is fixed to the inner bottom wall of the equipment box 1, with its output end fixedly connected to the drive shaft 602. The left end of the drive shaft 602 is fixedly connected to the drive gear 603. The driven ring gear 604 is fixedly connected to the annular surface of the drum 401, and the drive gear 603 meshes with the driven ring gear 604 to drive the drum 401 in rotation. The transmission shaft 605 is rotatably connected to the inner wall of the equipment box 1, and its surface is fixedly provided with the first transmission gear 606 and the second transmission gear 607. A driven synchronous pulley 608 is also fixedly connected to the surface of the transmission shaft 605. A driving synchronous pulley 609 is fixedly provided on the surface of the drive shaft 602. A transmission belt 610 is installed between the driving synchronous pulley 609 and the driven synchronous pulley 608 to achieve transmission between the drive shaft 602 and the transmission shaft 605. A first linkage gear 611 is fixedly provided on the surface of the rotating cross tube 501. The position of the first linkage gear 611 corresponds to and meshes with the second transmission gear 607 to drive the rotation of the rotating cross tube 501. The left end of the linkage shaft 203 is fixedly connected to a second linkage gear 612. The position of the second linkage gear 612 corresponds to and meshes with the first transmission gear 606 to drive the linkage shaft 203 to rotate, thereby guiding air into the interior of the device.

[0047] See also Figure 4 and Figure 7The linkage mechanism 6 is provided inside the equipment box 1 to achieve the coordinated rotation between the coating mechanism 5 and the dehumidification mechanism 4. The linkage mechanism 6 includes a drive motor 601, a drive shaft 602, a drive gear 603, a driven ring gear 604, a transmission shaft 605, a first transmission gear 606, a second transmission gear 607, a driven synchronous pulley 608, a drive synchronous pulley 609, a transmission belt 610, a first linkage gear 611, and a second linkage gear 612. The drive motor 601 is fixed to the inner bottom wall of the equipment box 1, with its output end fixedly connected to the drive shaft 602. The left end of the drive shaft 602 is fixedly connected to the drive gear 603. The driven ring gear 604 is fixedly connected to the annular surface of the drum 401, and the drive gear 603 meshes with the driven ring gear 604 to drive the drum 401 in rotation. The transmission shaft 605 is rotatably connected to the inner wall of the equipment box 1, and its surface is fixedly provided with the first transmission gear 606 and the second transmission gear 607. A driven synchronous pulley 608 is also fixedly connected to the surface of the transmission shaft 605. A driving synchronous pulley 609 is fixedly provided on the surface of the drive shaft 602. A transmission belt 610 is installed between the driving synchronous pulley 609 and the driven synchronous pulley 608 to achieve transmission between the drive shaft 602 and the transmission shaft 605. A first linkage gear 611 is fixedly provided on the surface of the rotating cross tube 501. The position of the first linkage gear 611 corresponds to and meshes with the second transmission gear 607 to drive the rotation of the rotating cross tube 501. The left end of the linkage shaft 203 is fixedly connected to a second linkage gear 612. The position of the second linkage gear 612 corresponds to and meshes with the first transmission gear 606 to drive the linkage shaft 203 to rotate, thereby guiding air into the interior of the device.

[0048] It is worth noting that a liquid storage box 7 is fixedly mounted on the upper surface of the equipment box 1 for storing the coating liquid. A delivery pump 8 is fixedly mounted to the right side of the liquid storage box 7. The input end of the delivery pump 8 extends into the interior of the liquid storage box 7, and the output end is fixedly connected to a delivery pipe 9. The end of the delivery pipe 9, away from the delivery pump 8, extends into the interior of the equipment box 1 and is rotatably connected to the right end of the rotating transverse tube 501. The output end of the delivery pipe 9 extends into the interior of the rotating transverse tube 501, and is used to deliver the coating liquid to the rotating transverse tube 501 for uniform spraying onto the material through the nozzle 503.

[0049] By setting up a stirring system, a stirring rod 10 is rotatably provided on the inner wall of the liquid storage box 7, and a number of stirring blades 11 are fixedly provided on the surface of the stirring rod 10, which are used to stir the coating liquid in the liquid storage box 7 to prevent it from settling and stratification. The left end of the stirring rod 10 extends to the outside of the liquid storage box 7 and is fixedly connected to a driven shaft 12. A first synchronous wheel 13 is fixedly provided on the left end of the driven shaft 12, and a limiting support tube 404 is fixedly embedded on the left end of the drum 401. A second synchronous wheel 14 is fixedly provided on the surface of the limiting support tube 404, and a synchronous belt 15 is installed between the first synchronous wheel 13 and the second synchronous wheel 14. When the drum 401 rotates, the stirring rod 10 is driven to rotate by the synchronous belt 15, thereby realizing automatic stirring of the coating liquid.

[0050] It is worth noting that several temperature and humidity sensors 16 are fixedly mounted on the inner top wall of the equipment box 1 to monitor the humidity and temperature inside the equipment in real time. These sensors 16 are evenly distributed above the drum 401 to ensure the accuracy and comprehensiveness of the monitoring data. Based on the monitoring data from the temperature and humidity sensors 16, the equipment can automatically adjust the dehumidification intensity and coating liquid spray volume to ensure the stability of the coating quality.

[0051] Working Principle: During operation, material is first added to the drum 401 through the inlet and outlet ports, and the curved cover 407 is closed to seal the inlet and outlet ports. The drive motor 601 is then activated, driving the drum 401 in rotation via the drive shaft 602, drive gear 603, and driven gear ring 604. Simultaneously, the drive motor 601 drives the drive shaft 605 via the drive synchronous pulley 609, drive belt 610, and driven synchronous pulley 608. The drive shaft 605 rotates the linkage shaft 203 via the first transmission gear 606 and the second linkage gear 612, directing air into the device through the intake blades 204. After being filtered by the dust removal screen 205, the air is evenly distributed within the device by the guide fan blades 207. Simultaneously, the drive shaft 605 drives the rotating transverse tube 501 in rotation via the second transmission gear 607 and the first linkage gear 611. The rotating transverse tube 501 stirs the material through the trapezoidal stirring tube 502, achieving uniform coating. The delivery pump 8 delivers the coating liquid in the liquid storage box 7 to the rotating horizontal tube 501 through the delivery pipe 9, and evenly sprays it on the material through the nozzle 503. During the coating process, the electric heating net 403 heats and dries the moisture passing through the annular dehumidification hole 402 to remove moisture during the coating process. The exhaust fan 304 discharges the moisture inside the equipment to the outside of the equipment through the exhaust pipe 302. The temperature and humidity sensor 16 monitors the humidity and temperature inside the equipment in real time, and automatically adjusts the dehumidification intensity and the amount of coating liquid sprayed according to the monitoring data to ensure the stability of the coating quality. When the coating is completed, open the arc cover 407 and take out the coated material through the inlet and outlet.

[0052] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

Claims

1. A coating device with humidity feedback and automatic dehumidification, comprising a device box (1), characterized in that: The left and right ends of the equipment box (1) are respectively provided with an exhaust assembly (3) and an air intake assembly (2), and the interior of the equipment box (1) is provided with a dehumidification mechanism (4) and a coating mechanism (5); The dehumidification mechanism (4) comprises a roller (401) rotatably arranged inside the equipment box (1), an annular dehumidification hole (402) is provided at the right end of the roller (401), and an annular electric heating net (403) is fixedly installed on the inner wall of the annular dehumidification hole (402); The coating mechanism (5) comprises a rotating transverse tube (501) rotatably arranged on the inner wall of the drum (401), a plurality of trapezoidal stirring tubes (502) are symmetrically arranged on the surface of the rotating transverse tube (501), a plurality of nozzles (503) are evenly distributed on the surface of the trapezoidal stirring tube (502), a linkage mechanism (6) is arranged between the coating mechanism (5) and the dehumidification mechanism (4), and the coating mechanism (5) and the dehumidification mechanism (4) are linked to each other through the linkage mechanism (6); The linkage mechanism (6) includes a driving motor (601) fixedly arranged on the inner bottom wall of the equipment box (1), the output end of the driving motor (601) is fixedly connected to a driving shaft (602), the left end of the driving shaft (602) is fixedly connected to a driving gear (603), and the annular surface of the roller (401) is fixedly connected to a driven gear ring (604), the position of the driven gear ring (604) corresponds to the driving gear (603), and the driving gear (603) and the driven gear ring (604) are meshed. The inner wall of the equipment box (1) is rotatably connected to a transmission shaft (605), a surface of the transmission shaft (605) is fixedly provided with a first transmission gear (606) and a second transmission gear (607), a surface of the transmission shaft (605) is fixedly connected to a driven synchronous wheel (608), a surface of the drive shaft (602) is fixedly provided with a driving synchronous wheel (609), and a transmission belt (610) is installed between the driving synchronous wheel (609) and the driven synchronous wheel (608); The right end of the rotating transverse tube (501) extends to the outside of the drum (401), and a first linkage gear (611) is fixedly provided on the surface of the rotating transverse tube (501). The position of the first linkage gear (611) corresponds to the second transmission gear (607), and the first linkage gear (611) is meshed with the second transmission gear (607).

2. The coating equipment with humidity feedback and automatic dehumidification according to claim 1, characterized in that: The air intake assembly (2) comprises an air intake cover (201) fixedly mounted on the right end of the equipment box (1), the left end of the air intake cover (201) extends into the interior of the equipment box (1), and a limit mounting ring (202) is fixedly provided on the inner wall of the air intake cover (201), a linkage shaft (203) is rotatably provided on the surface of the limit mounting ring (202), and a second linkage gear (612) is fixedly connected to the left end of the linkage shaft (203), the position of the second linkage gear (612) corresponds to the first transmission gear (606), and the second linkage gear (612) is meshed with the first transmission gear (606).

3. The coating equipment with humidity feedback and automatic dehumidification according to claim 2, characterized in that: A plurality of air intake blades (204) are fixedly provided on the surface of the linkage shaft (203); a dust removal screen (205) is fixedly connected to the right side of the position-limiting mounting ring (202); the position of the dust removal screen (205) corresponds to the air intake blades (204); a fixed disk is fixed to the right end of the dust removal screen (205); a movable frame (206) is rotatably connected to the center of the surface of the fixed disk; a guide fan blade (207) is fixedly provided on the surface of the movable frame (206); two strip brushes (208) are fixedly provided on the surface of the movable frame (206); the two strip brushes (208) are symmetrically distributed on both sides of the dust removal screen (205), and the strip brushes (208) overlap the surface of the dust removal screen (205).

4. The coating equipment with humidity feedback and automatic dehumidification according to claim 3, characterized in that: A liquid storage box (7) is fixedly provided on the upper surface of the equipment box (1), and a delivery pump (8) is fixedly installed on the right side of the liquid storage box (7), the input end of the delivery pump (8) extends to the interior of the liquid storage box (7), and the output end of the delivery pump (8) is fixedly connected to a delivery pipe (9), the end of the delivery pipe (9) away from the delivery pump (8) extends to the interior of the equipment box (1), and the output end of the delivery pipe (9) is rotatably connected to the right end of the rotating transverse pipe (501), and the output end of the delivery pipe (9) extends to the interior of the rotating transverse pipe (501).

5. The coating equipment with humidity feedback and automatic dehumidification according to claim 4, characterized in that: The inner wall of the liquid storage box (7) is rotatably provided with a stirring rod (10), and a plurality of stirring blades (11) are fixedly provided on the surface of the stirring rod (10), and the left end of the stirring rod (10) extends to the outside of the liquid storage box (7) and is fixedly connected to a driven shaft (12), and a first synchronous wheel (13) is fixedly provided on the left end of the driven shaft (12), and a limiting support tube (404) is fixedly embedded in the left end of the roller (401), and a second synchronous wheel (14) is fixedly provided on the surface of the limiting support tube (404), and a synchronous belt (15) is installed between the first synchronous wheel (13) and the second synchronous wheel (14).

6. The coating equipment with humidity feedback and automatic dehumidification according to claim 5, characterized in that: A limiting circular plate (405) is fixedly provided at the right end of the limiting support tube (404), the left end of the rotating transverse tube (501) is rotatably connected to the surface of the limiting circular plate (405), a plurality of moisture-discharging holes (406) are provided on the surface of the limiting support tube (404), the exhaust assembly (3) comprises an exhaust hood (301) fixedly installed at the left end of the equipment box (1), the left end of the limiting support tube (404) extends to the interior of the exhaust hood (301), and the limiting support tube (404) is rotatably connected to the left inner wall of the equipment box (1), and an exhaust pipe (302) is fixedly provided on the top of the exhaust hood (301).

7. The coating equipment with humidity feedback and automatic dehumidification according to claim 6, characterized in that: A dustproof net (303) is fixedly provided at the top opening of the exhaust pipe (302), an exhaust fan (304) is fixedly provided on the inner wall of the exhaust cover (301), and an air outlet end of the exhaust fan (304) corresponds to an air inlet end of the exhaust pipe (302).

8. The coating equipment with humidity feedback and automatic dehumidification according to claim 1, characterized in that: A plurality of temperature and humidity sensors (16) are fixedly mounted on the inner top wall of the equipment box (1), and the plurality of temperature and humidity sensors (16) are evenly distributed above the drum (401). A material inlet and outlet are provided on the surface of the drum (401), and an arc-shaped cover plate (407) is rotatably provided on the outside of the material inlet and outlet.

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